Format: Book / Publish Date: 1997 / Topic: Environmental aspects

1. Nitrates in groundwater /

Published:: 1997
Author:: Canter, Larry W.
View in NAL's Catalog:: CAT10757623
Format:: Book

2. Reactivity and transport of heavy metals in soils /

Published:: 1997
Author:: Selim, Hussein Magd Eldin, 1944-
View in NAL's Catalog:: CAT10748981
Format:: Book

3. Detergents in the environment /

Published:: 1997
View in NAL's Catalog:: CAT10753043
Format:: Book

4. Soil ecotoxicology /

Published:: 1997
View in NAL's Catalog:: CAT10821653
Format:: Book

5. Draft environmental impact statement : Long Draw salvage, Okanogan National Forest.

Published:: 1997
View in NAL's Catalog:: CAT10822087
Format:: Book

6. Record of decision : Mt. Hood Meadows Ski Area master plan : final environmental impact statement : Hood River Ranger District, Mt. Hood National Forest.

Published:: 1997
View in NAL's Catalog:: CAT10822140
Format:: Book

7. Summary draft environmental impact statement : Long Draw salvage, Okanogan National Forest.

Published:: 1997
View in NAL's Catalog:: CAT10822629
Format:: Book

8. Global change and arctic terrestrial ecosystems /

Published:: 1997
View in NAL's Catalog:: CAT10823076
Format:: Book

9. Final supplemental environmental impact statement for the revised land and resource management plan : oil and gas leasing in Laurel Fork special management area /

Published:: 1997
View in NAL's Catalog:: CAT10823123
Format:: Book

10. Record of decision : final supplemental environmental impact statement for the revised land and resource management plan : oil and gas leasing in Laurel Fork special management area /

Published:: 1997
View in NAL's Catalog:: CAT10823124
Format:: Book

11. Final environmental impact statement Crown Jewel Mine : Okanogan County, Washington /

Published:: 1997
View in NAL's Catalog:: CAT10823326
Format:: Book

12. Crown Jewel Mine final environmental impact statement summary /

Published:: 1997
View in NAL's Catalog:: CAT10823327
Format:: Book

13. Record of decision for the final environmental impact statement : Crown Jewel Mine, Okanogan County, Washington.

Published:: 1997
View in NAL's Catalog:: CAT10823328
Format:: Book

14. Lab Bay Project Area final environmental impact statement : Ketchikan Pulp Company long-term timber sale contract.

Published:: 1997
View in NAL's Catalog:: CAT10823524
Format:: Book

15. Anchor Hill Project, Gilt Edge Mine : draft environmental impact statement.

Published:: 1997
View in NAL's Catalog:: CAT10824023
Format:: Book

16. Building on consensus : a progress report on sustainable America.

Published:: 1997
View in NAL's Catalog:: CAT10824098
Format:: Book

17. Draft environmental impact statement for the development of snowmaking water impoundments at Waterville Valley Ski Resort : White Mountain National Forest.

Published:: 1997
View in NAL's Catalog:: CAT10824115
Format:: Book

18. Kensington Gold Project : draft supplemental environmental impact statement /

Published:: 1997
View in NAL's Catalog:: CAT10824125
Format:: Book

19. Fumigants : environmental fate, exposure, and analysis /

Published:: 1997
View in NAL's Catalog:: CAT10824208
Format:: Book

20. Desolation wilderness management guidelines : draft environmental impact statement.

Published:: 1997
View in NAL's Catalog:: CAT10824515
Format:: Book

21. Manufacturing plant location : does state pollution regulation matter? /

Published:: 1997
Author:: Gray, Wayne B. 1955-
View in NAL's Catalog:: CAT10825005
Format:: Book

22. Record of decision, noxious weed control project final environmental impact statement : Priest Lake Ranger District, Idaho Panhandle National Forests, Bonner County, Idaho, Boundary County, Idaho, Pend Oreille County, Washington.

Published:: 1997
View in NAL's Catalog:: CAT10825134
Format:: Book

23. Record of decision : Castle Mountains range analysis : final environmental impact statement.

Published:: 1997
View in NAL's Catalog:: CAT10825217
Format:: Book

24. A broader approach to common resource management : landcare and integrated catchment management in Queensland, Australia /

Published:: 1997
Author:: Roberts, Kate.
View in NAL's Catalog:: CAT10825304
Format:: Book

25. Extra-market values and conflicting agricultural environmental policies /

Published:: 1997
Author:: Poe, Gregory L.
View in NAL's Catalog:: CAT10825311
Format:: Book

26. Farming and birds in Europe : the common agricultural policy and its implications for bird conservation /

Published:: 1997
View in NAL's Catalog:: CAT10825573
Format:: Book

27. Climate policy and petroleum depletion /

Published:: 1997
Author:: Khanna, Neha.
View in NAL's Catalog:: CAT10825819
Format:: Book

28. Mercury and its effects on environment and biology /

Published:: 1997
View in NAL's Catalog:: CAT10826151
Format:: Book

29. Pesticide profiles : toxicity, environmental impact, and fate /

Published:: 1997
Author:: Kamrin, Michael A.
View in NAL's Catalog:: CAT10826249
Format:: Book

30. Techniques for reducing pesticide use : economic and environmental benefits /

Published:: 1997
View in NAL's Catalog:: CAT10826498
Format:: Book

31. Final environmental impact statement for the Alta Ski Area master development plan update /

Published:: 1997
View in NAL's Catalog:: CAT10826839
Format:: Book

32. Record of decision : Alta ski lifts master development plan update : final environmental impact statement.

Published:: 1997
View in NAL's Catalog:: CAT10826840
Format:: Book

33. Little River DEMO timber sale : draft environmental impact statement.

Published:: 1997
View in NAL's Catalog:: CAT10826869
Format:: Book

34. Stevens Gulch road and related timber sales : final supplement to the final environmental impact statement : Grand Mesa, Uncompahgre, and Gunnison National Forests.

Published:: 1997
View in NAL's Catalog:: CAT10827177
Format:: Book

35. Ecological issues and environmental impact assessment /

Published:: 1997
View in NAL's Catalog:: CAT10827228
Format:: Book

36. Fish Bate salvage : record of decision : North Fork Ranger District, Clearwater National Forest.

Published:: 1997
View in NAL's Catalog:: CAT10827304
Format:: Book

37. Wildlife use of agricultural drains in the Imperial Valley, California /

Published:: 1997
View in NAL's Catalog:: CAT10827379
Format:: Book

38. Summit Fire Recovery Project : draft environmental impact statement : Malheur National Forest, Long Creek Ranger District.

Published:: 1997
View in NAL's Catalog:: CAT10827381
Format:: Book

39. The environment : air, water, and soil /

Published:: 1997
View in NAL's Catalog:: CAT10820263
Format:: Book

40. Ecology of an African rain forest : logging in Kibale and the conflict between conservation and exploitation /

Published:: 1997
Author:: Struhsaker, Thomas T.
View in NAL's Catalog:: CAT10824808
Format:: Book

41. Sustainable aquaculture /

Published:: 1997
View in NAL's Catalog:: CAT10827553
Format:: Book

42. Technological trajectories and the human environment /

Published:: 1997
View in NAL's Catalog:: CAT10827900
Format:: Book

43. Sediment records of biomass burning and global change /

Published:: 1997
View in NAL's Catalog:: CAT10827904
Format:: Book

44. Griffon mining project final environmental impact statement : USDA Forest Service-Region 4, Humboldt-Toiyabe National Forests, Central Nevada Ecosystem, Ely Ranger District, White Pine County, Nevada.

Published:: 1997
View in NAL's Catalog:: CAT10827934
Format:: Book

45. Developing a farm plan to address water quality and farm business objectives : a framework for planning /

Published:: 1997
Author:: Hanchar, John J.
View in NAL's Catalog:: CAT10827972
Format:: Book

46. The case for a two-part instrument : presumptive tax and environmental subsidy /

Published:: 1997
Author:: Fullerton, Don.
View in NAL's Catalog:: CAT10827997
Format:: Book

47. Aspen Highlands Ski Area : final environmental impact statement : record of decision /

Published:: 1997
View in NAL's Catalog:: CAT10828264
Format:: Book

48. Aspen Highlands Ski Area : final environmental impact statement.

Published:: 1997
View in NAL's Catalog:: CAT10828265
Format:: Book

49. Pesticide residues in food - 1996 : report of the Joint Meeting of the FAO Panel of Experts on Pesticide Residues in Food and the Environment and the WHO Expert Group on Pesticide Residues, Rome, Italy, 16-25 September 1996.

Published:: 1997
View in NAL's Catalog:: CAT10828272
Format:: Book

50. Draft supplement to the final environmental impact statement vail category III ski area development : USDA-Forest Service, Holy Cross Ranger District, White River National Forest, Eagle County, Colorado.

Published:: 1997
View in NAL's Catalog:: CAT10828329
Format:: Book

51. Agrochemicals desk reference /

Published:: 1997
Author:: Montgomery, John H. 1955-
View in NAL's Catalog:: CAT10828933
Format:: Book

52. Metolius wild and scenic river management plan : record of decision.

Published:: 1997
View in NAL's Catalog:: CAT10829001
Format:: Book

53. Global warming : implications for freshwater and marine fish /

Published:: 1997
View in NAL's Catalog:: CAT10829148
Format:: Book

54. Estimating stability class in the field /

Published:: 1997
Author:: Lavdas, Leonidas G.
View in NAL's Catalog:: CAT10829453
Format:: Book

55. Tritium, deuterium, and oxygen-18 in water collected from unsaturated sediments near a low-level radioactive-waste burial site south of Beatty, Nevada /

Published:: 1997
Author:: Prudic, David E.
View in NAL's Catalog:: CAT10829559
Format:: Book

56. Occurrence of phosphorus, other nutrients, and triazine herbicides in water from the Hillsdale Lake Basin, Northeast Kansas, May 1994 through May 1995 /

Published:: 1997
Author:: Putnam, James E.
View in NAL's Catalog:: CAT10829582
Format:: Book

57. Balancing act : environmental issues in forestry /

Published:: 1997
Author:: Kimmins, J. P.
View in NAL's Catalog:: CAT10824290
Format:: Book

58. Nutrients and pesticides in ground water of the Ozark Plateaus in Arkansas, Kansas, Missouri, and Oklahoma /

Published:: 1997
Author:: Adamski, James C.
View in NAL's Catalog:: CAT10829666
Format:: Book

59. Veränderungen von Böden durch anthropogene Einflüsse : ein interdisziplinäres Studienbuch /

Published:: 1997
View in NAL's Catalog:: CAT10829710
Format:: Book

60. Effects of land use and geohydrology on the quality of shallow ground water in two agricultural areas in the Western Lake Michigan drainages, Wisconsin /

Published:: 1997
Author:: Saad, David A.
View in NAL's Catalog:: CAT10829742
Format:: Book

61. Ground-water resources of three areas on the Spokane and Kalispel Indian Reservations, northeastern Washington /

Published:: 1997
Author:: Embrey, S. S.
View in NAL's Catalog:: CAT10829789
Format:: Book

62. Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : effects of pipe-outlet terracing on quantity and quality of surface runoff and ground water in a small carbonate-rock basin near Churchtown, Pennsylvania, 1983-89 /

Published:: 1997
Author:: Lietman, Patricia L.
View in NAL's Catalog:: CAT10829835
Format:: Book

63. Field screening of water quality, bottom sediment, and biota associated with the Emery and Scofield Project areas, Central Utah, 1994 /

Published:: 1997
View in NAL's Catalog:: CAT10830046
Format:: Book

64. Methane oxidation in landfill cover soils /

Published:: 1997
Author:: Borjesson, Gunnar.
View in NAL's Catalog:: CAT10830055
Format:: Book

65. Stewart mining operation : final environmental impact statement : Umpqua National Forest /

Published:: 1997
View in NAL's Catalog:: CAT10830075
Format:: Book

66. Pollution prevention in the paints and coatings industry : manual.

Published:: 1997
Author:: Joseph, Ron.
View in NAL's Catalog:: CAT10829172
Format:: Book

67. Considering all things : summary of the draft environmental impact statements : Eastside environmental impact statement, Upper Columbia River Basin environmental impact statement /

Published:: 1997
View in NAL's Catalog:: CAT10830192
Format:: Book

68. Water-quality assessment of the Rio Grande Valley, Colorado, New Mexico and Texas : organic compounds and trace elements in bed sediment and fish tissue, 1992-93 /

Published:: 1997
Author:: Carter, Lisa F.
View in NAL's Catalog:: CAT10830299
Format:: Book

69. Surface-water quality changes after 5 years of nutrient management in the Little Conestoga Creek headwaters, Pennsylvania, 1989-91 /

Published:: 1997
Author:: Koerkle, Edward H.
View in NAL's Catalog:: CAT10830300
Format:: Book

70. Upper Columbia River Basin : draft environmental impact statement /

Published:: 1997
View in NAL's Catalog:: CAT10830311
Format:: Book

71. Packsaddle final environmental impact statement : record of decision : Idaho Panhandle National Forests, Sandpoint Ranger District.

Published:: 1997
View in NAL's Catalog:: CAT10830329
Format:: Book

72. The killing of the countryside /

Published:: 1997
Author:: Harvey, Graham.
View in NAL's Catalog:: CAT10830537
Format:: Book

73. Waiting for rain : agriculture and ecological imbalance in Cape Verde /

Published:: 1997
Author:: Langworthy, Mark.
View in NAL's Catalog:: CAT10823366
Format:: Book

74. Il sistema di qualità nei processi produttivi agroalimentari ecocompatibili : itinerari formativi /

Published:: 1997
View in NAL's Catalog:: CAT30799011
Format:: Book

75. Shadows in the forest : Japan and the politics of timber in Southeast Asia /

Published:: 1997
Author:: Dauvergne, Peter.
View in NAL's Catalog:: CAT10830903
Format:: Book

76. Final environmental impact statement : vegetation management on electric utility rights-of-way : Allegheny National Forest, Warren, McKean, Forest and Elk counties, Pennsylvania /

Published:: 1997
View in NAL's Catalog:: CAT10830949
Format:: Book

77. Draft environmental impact statement : Beaver Creek ecosystem management project and associated timber sale : Kootenai National Forest, Cabinet Ranger District, Sanders County, Montana.

Published:: 1997
View in NAL's Catalog:: CAT10831006
Format:: Book

78. Dome Peak timber sale : draft environmental impact statement.

Published:: 1997
View in NAL's Catalog:: CAT10831086
Format:: Book

79. Modern agriculture and the environment : proceedings of an international conference, held in Rehovot, Israel, 2-6 October 1994 : under the auspices of the Faculty of Agriculture, the Hebrew University of Jerusalem /

Published:: 1997
View in NAL's Catalog:: CAT10831245
Format:: Book

80. Fiscal year 1997 [i.e. 1998] draft work plan /

Published:: 1997
View in NAL's Catalog:: CAT10831447
Format:: Book

81. An evaluation of potential shrimp virus impacts on cultured shrimp and wild shrimp populations in the Gulf of Mexico and southeastern U.S. Atlantic Coastal waters : a report to the Joint Subcommittee on Aquaculture /

Published:: 1997
View in NAL's Catalog:: CAT10829593
Format:: Book

82. 8th street wildfire timber recovery project : environmental assessment.

Published:: 1997
View in NAL's Catalog:: CAT10831516
Format:: Book

83. Record of decision : Carlota Copper Project : Tonto National Forest.

Published:: 1997
View in NAL's Catalog:: CAT10832236
Format:: Book

84. Final environmental impact statement for Carlota Copper Project : Tonto National Forest.

Published:: 1997
View in NAL's Catalog:: CAT10832237
Format:: Book

85. Effects of biologically-treated elemental chlorine free bleached kraft mill effluent on early life-stages and life-cycles of the fathead minnow (Pimephales promelas) and Ceriodaphnia dubia.

Published:: 1997
View in NAL's Catalog:: CAT10832318
Format:: Book

86. Strontium distribution coefficients of the surficial sediment samples from the Idaho National Engineering Laboratory, Idaho /

Published:: 1997
Author:: Liszewski, Michael J.
View in NAL's Catalog:: CAT10832480
Format:: Book

87. Nitrogen and pesticide concentrations in an agricultural basin in north-central Connecticut /

Published:: 1997
Author:: Mullaney, John R.
View in NAL's Catalog:: CAT10832492
Format:: Book

88. Praktische Ansätze zur Verwirklichung einer umweltgerechten Landnutzung : Beispiele für eine konstruktive Zusammenarbeit zwischen angewandter Forschung, Beratung und Praxis in den Landkreisen Schmalkalden-Meiningen (Thüringen), Saalkreis (Sachsen-Anhalt) und ausgewählten Vergleichsregionen in Hessen /

Published:: 1997
View in NAL's Catalog:: CAT10832649
Format:: Book

89. Short term impact of Finnish landrace cattle on the vegetation and soil of a wood pasture in SW Finland /

Published:: 1997
Author:: Malkamäki, Elina.
View in NAL's Catalog:: CAT10832651
Format:: Book

90. Final environmental impact statement for the proposed Cooke City area mineral withdrawal /

Published:: 1997
View in NAL's Catalog:: CAT10832655
Format:: Book

91. Ecosystem-based management of natural resources : a step towards sustainable development /

Published:: 1997
Author:: Schlaepfer, Rodolphe.
View in NAL's Catalog:: CAT10832315
Format:: Book

92. Concentrations and transport of atrazine in the surface water of the Delaware River-Perry Lake system, northeast Kansas, July 1992 through September 1995 /

Published:: 1997
View in NAL's Catalog:: CAT10832696
Format:: Book

93. Hydrologic conditions and distribution of selected radiochemical and chemical constituents in water, Snake River Plain aquifer, Idaho National Engineering Laboratory, Idaho, 1992 through 1995 /

Published:: 1997
View in NAL's Catalog:: CAT10832725
Format:: Book

94. Potential effects of large floods on the transport of atrazine into the alluvial aquifer adjacent to the lower Platte River, Nebraska /

Published:: 1997
Author:: Frankforter, J. D.
View in NAL's Catalog:: CAT10832766
Format:: Book

95. Environmentally safe approaches to crop disease control /

Published:: 1997
View in NAL's Catalog:: CAT10822867
Format:: Book

96. Air pollution, people, and plants : an introduction /

Published:: 1997
Author:: Krupa, Sagar V.
View in NAL's Catalog:: CAT10830121
Format:: Book

97. Draft environmental impact statement for motorized access to private property within the Kalmiopsis Wilderness.

Published:: 1997
View in NAL's Catalog:: CAT10832985
Format:: Book

98. The Climate change convention and developing countries : from conflict to consensus? /

Published:: 1997
Author:: Gupta, Joyeeta, 1964-
View in NAL's Catalog:: CAT10832627
Format:: Book

99. Fourmile Hill geothermal development project : environmental impact statement, environmental impact report : draft /

Published:: 1997
View in NAL's Catalog:: CAT10833094
Format:: Book

100. Draft environmental impact statement : Caribou National Forest phosphate leasing proposal /

Published:: 1997
View in NAL's Catalog:: CAT10833095
Format:: Book

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1. Nitrates in groundwater /

2. Reactivity and transport of heavy metals in soils /

3. Detergents in the environment /

4. Soil ecotoxicology /

5. Draft environmental impact statement : Long Draw salvage, Okanogan National Forest.

6. Record of decision : Mt. Hood Meadows Ski Area master plan : final environmental impact statement : Hood River Ranger District, Mt. Hood National Forest.

7. Summary draft environmental impact statement : Long Draw salvage, Okanogan National Forest.

8. Global change and arctic terrestrial ecosystems /

9. Final supplemental environmental impact statement for the revised land and resource management plan : oil and gas leasing in Laurel Fork special management area /

10. Record of decision : final supplemental environmental impact statement for the revised land and resource management plan : oil and gas leasing in Laurel Fork special management area /

11. Final environmental impact statement Crown Jewel Mine : Okanogan County, Washington /

12. Crown Jewel Mine final environmental impact statement summary /

13. Record of decision for the final environmental impact statement : Crown Jewel Mine, Okanogan County, Washington.

14. Lab Bay Project Area final environmental impact statement : Ketchikan Pulp Company long-term timber sale contract.

15. Anchor Hill Project, Gilt Edge Mine : draft environmental impact statement.

16. Building on consensus : a progress report on sustainable America.

17. Draft environmental impact statement for the development of snowmaking water impoundments at Waterville Valley Ski Resort : White Mountain National Forest.

18. Kensington Gold Project : draft supplemental environmental impact statement /

19. Fumigants : environmental fate, exposure, and analysis /

20. Desolation wilderness management guidelines : draft environmental impact statement.

21. Manufacturing plant location : does state pollution regulation matter? /

22. Record of decision, noxious weed control project final environmental impact statement : Priest Lake Ranger District, Idaho Panhandle National Forests, Bonner County, Idaho, Boundary County, Idaho, Pend Oreille County, Washington.

23. Record of decision : Castle Mountains range analysis : final environmental impact statement.

24. A broader approach to common resource management : landcare and integrated catchment management in Queensland, Australia /

25. Extra-market values and conflicting agricultural environmental policies /

26. Farming and birds in Europe : the common agricultural policy and its implications for bird conservation /

27. Climate policy and petroleum depletion /

28. Mercury and its effects on environment and biology /

29. Pesticide profiles : toxicity, environmental impact, and fate /

30. Techniques for reducing pesticide use : economic and environmental benefits /

31. Final environmental impact statement for the Alta Ski Area master development plan update /

32. Record of decision : Alta ski lifts master development plan update : final environmental impact statement.

33. Little River DEMO timber sale : draft environmental impact statement.

34. Stevens Gulch road and related timber sales : final supplement to the final environmental impact statement : Grand Mesa, Uncompahgre, and Gunnison National Forests.

35. Ecological issues and environmental impact assessment /

36. Fish Bate salvage : record of decision : North Fork Ranger District, Clearwater National Forest.

37. Wildlife use of agricultural drains in the Imperial Valley, California /

38. Summit Fire Recovery Project : draft environmental impact statement : Malheur National Forest, Long Creek Ranger District.

39. The environment : air, water, and soil /

40. Ecology of an African rain forest : logging in Kibale and the conflict between conservation and exploitation /

41. Sustainable aquaculture /

42. Technological trajectories and the human environment /

43. Sediment records of biomass burning and global change /

44. Griffon mining project final environmental impact statement : USDA Forest Service-Region 4, Humboldt-Toiyabe National Forests, Central Nevada Ecosystem, Ely Ranger District, White Pine County, Nevada.

45. Developing a farm plan to address water quality and farm business objectives : a framework for planning /

46. The case for a two-part instrument : presumptive tax and environmental subsidy /

47. Aspen Highlands Ski Area : final environmental impact statement : record of decision /

48. Aspen Highlands Ski Area : final environmental impact statement.

49. Pesticide residues in food - 1996 : report of the Joint Meeting of the FAO Panel of Experts on Pesticide Residues in Food and the Environment and the WHO Expert Group on Pesticide Residues, Rome, Italy, 16-25 September 1996.

50. Draft supplement to the final environmental impact statement vail category III ski area development : USDA-Forest Service, Holy Cross Ranger District, White River National Forest, Eagle County, Colorado.

51. Agrochemicals desk reference /

52. Metolius wild and scenic river management plan : record of decision.

53. Global warming : implications for freshwater and marine fish /

54. Estimating stability class in the field /

55. Tritium, deuterium, and oxygen-18 in water collected from unsaturated sediments near a low-level radioactive-waste burial site south of Beatty, Nevada /

56. Occurrence of phosphorus, other nutrients, and triazine herbicides in water from the Hillsdale Lake Basin, Northeast Kansas, May 1994 through May 1995 /

57. Balancing act : environmental issues in forestry /

58. Nutrients and pesticides in ground water of the Ozark Plateaus in Arkansas, Kansas, Missouri, and Oklahoma /

59. Veränderungen von Böden durch anthropogene Einflüsse : ein interdisziplinäres Studienbuch /

60. Effects of land use and geohydrology on the quality of shallow ground water in two agricultural areas in the Western Lake Michigan drainages, Wisconsin /

61. Ground-water resources of three areas on the Spokane and Kalispel Indian Reservations, northeastern Washington /

62. Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : effects of pipe-outlet terracing on quantity and quality of surface runoff and ground water in a small carbonate-rock basin near Churchtown, Pennsylvania, 1983-89 /

63. Field screening of water quality, bottom sediment, and biota associated with the Emery and Scofield Project areas, Central Utah, 1994 /

64. Methane oxidation in landfill cover soils /

65. Stewart mining operation : final environmental impact statement : Umpqua National Forest /

66. Pollution prevention in the paints and coatings industry : manual.

67. Considering all things : summary of the draft environmental impact statements : Eastside environmental impact statement, Upper Columbia River Basin environmental impact statement /

68. Water-quality assessment of the Rio Grande Valley, Colorado, New Mexico and Texas : organic compounds and trace elements in bed sediment and fish tissue, 1992-93 /

69. Surface-water quality changes after 5 years of nutrient management in the Little Conestoga Creek headwaters, Pennsylvania, 1989-91 /