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Soil conservation : hearing before the Subcommittee on Soil and Water Conservation of the Committee on Agriculture, Nutrition, and Forestry, United States Senate, Ninety-seventh Congress, Congress, first session, August 31, 1981--Burlington, Iowa. --
- Other Authors:
- United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Soil and Water Conservation.
- Soil conservation Iowa
Soil conservation United States
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