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By: United States. Bureau of Entomology and Plant Quarantine. - Gilmore, J. U. - United States. Bureau of Entomology and Plant Quarantine.Edition:Publication info: [S.l.], Bureau of Entomology and Plant Quarantine, Agricultural Research Administration, U.S. Dept. of Agriculture, 1950Volume: no.15Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: