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By: Greenfield, David W. - Johnson, Robert KarlEdition:Publication info: Chicago, Ill, Field Museum of Natural History, 1981Volume: n.s. no.8 (1981)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Johnson, Robert KarlEdition:Publication info: Chicago, Ill, Field Museum of Natural History, [1982]Volume: n.s. no.12 (1982)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Johnson, Robert Karl - Greenfield, David W.Edition:Publication info: [Chicago], Field Museum of Natural History, 1976Volume: v.70:no.2 (1976)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Johnson, Robert Karl - Feltes, Ross M.Edition:Publication info: Chicago, Field Museum of Natural History, 1984Volume: n.s. no.22 (1984)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Johnson, Robert KarlEdition:Publication info: Chicago, Field Museum of Natural History, 1974Volume: v.66 (1974)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Johnson, Robert Karl - Greenfield, David W.Type: ArticleIn: FieldianaVolume: 70Series:Issue:Date: 1976Page Range: 13--28Publication Info: [Chicago] Chicago Natural History Museum [1945?-Subjects:
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By: Harold, Antony S - Wessel, James H. - Johnson, Robert KarlType: ArticleIn: Proceedings of the Biological Society of WashingtonVolume: 111Series:Issue:Date: 1998Page Range: 942--953Publication Info: Washington, Biological Society of Washington,Subjects:
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By: Johnson, Robert Karl - Feltes, Ross M.Type: ArticleIn: FieldianaVolume: 22Series:Issue:Date: 1984-02-29Page Range: 1--47Publication Info: [Chicago] Chicago Natural History Museum [1945?-Subjects:
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By: Johnson, Robert KarlType: ArticleIn: FieldianaVolume: 66Series:Issue:Date: 1974Page Range: 1--249Publication Info: [Chicago] Chicago Natural History Museum [1945?-Subjects: