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By: United States. Agricultural Research Service.Edition:Publication info: Beltsville, Md, U.S. Dept. of Agriculture, Agricultural Research Service, 1970Volume: no.44-79-10Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: alternative farming Animal Science Canada Eggs organic production Production Statistics United States ZoologyBHL Collections:
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By: Yerington, Albert P.,Edition:Publication info: [Washington],Volume: no.39Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: alternative farming arthropods Entomology organic productionBHL Collections: