The nature and fate of chemicals applied to soils, plants, and animals : a symposium held April 27, 28, and 29, 1960, at the Plant Industry Station and Agricultural Research Center, Beltsville, Maryla...
[Washington, D.C, Agricultural Research Service, United States Department of Agriculture], 1960
1960
U.S. Department of Agriculture, National Agricultural Library
U.S. Department of Agriculture, National Agricultural Library
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