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By: Gertler, S. I. - United States. Entomology Research Branch.Edition:Publication info: [Beltsville, Md.?], U.S. Dept. of Agriculture, Agricultural Research Service, 1955Volume: no.33-9Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Gertler, S. I. - United States. Entomology Research Division.Edition:Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, Agricultural Research Administration, 1960Volume: no.33-61Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: