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By: Gerhardt, Fisk. - English, Harley. - United States. Bureau of Plant Industry, Soils, and Agricultural Engineering.Edition:Publication info: Beltsville, Md, U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering, 1946Volume: no.167Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Gerhardt, Fisk. - United States. Bureau of Plant Industry, Soils, and Agricultural Engineering.Edition:Publication info: Wenatchee, Wash, U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering, 1946Volume: no.172Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Gerhardt, Fisk. - United States. Bureau of Plant Industry, Soils, and Agricultural Engineering.Edition:Publication info: Wenatchee, Wash, U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering, 1946Volume: no.167-ASeries:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: