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By: Campbell, Roy E. (Roy Elliott),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920Volume: no.807 (1920)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Campbell, Roy E. (Roy Elliott),Edition:Publication info: Wash, 1921Volume:Series:Holding Institution: Library of CongressSubjects:BHL Collections:
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By: Campbell, Roy E. (Roy Elliott),Type: ArticleIn: The Pan-Pacific entomologistVolume: 4Series:Issue:Date: 1927Page Range: 77--84Publication Info: San Francisco Pacific Coast Entomological SocietySubjects:
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By: Campbell, Roy E. (Roy Elliott),Type: ArticleIn: Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of PhiladelphiaVolume: 25Series:Issue:Date: 1914Page Range: 222--224Publication Info: Philadelphia, [Entomological Rooms of the Academy of Natural Sciences],Subjects: