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1. Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : effects of nutrient management on quality of surface runoff at a small carbonate-rock site near Ephrata, Pennsylvania, 1984-90 /

Published:: 1997
Author:: Hall, David W.
View in NAL's Catalog:: CAT10833577
Format:: Book

2. 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

3. Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania : hydrology of a small carbonate site near Ephrata, Pennsylvania, prior to implementation of nutrient management : water-quality study of the Conestoga River headwaters, Pennsylvania /

Published:: 1996
View in NAL's Catalog:: CAT10820064
Format:: Book

4. Effects of agricultural best-management practices on the Brush Run Creek headwaters, Adams County, Pennsylvania, prior to and during nutrient management /

Published:: 1996
Author:: Langland, Michael J.
View in NAL's Catalog:: CAT10753450
Format:: Book