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By: Knapp, Seaman Asahel, - United States. Bureau of Plant Industry.Edition:Publication info: Washington D.C, Bureau of Plant Industry, United States Dept. of Agriculture, [191-?]Volume:Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: United States. Bureau of Plant Industry. Farmers' Cooperative Demonstration Work. - Knapp, Seaman Asahel,Edition: Rev. ed.Publication info: Washington, 1911Volume: B.P.I.-619 (1911:June 5)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: United States. Bureau of Plant Industry. - Knapp, Seaman Asahel,Edition:Publication info: Washington, 1905Volume: 1905Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: