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By: Pohl, Richard Walter,Edition:Publication info: Dubuque, Iowa, W. C. Brown Co, [1954]Volume:Series:Holding Institution: MBLWHOI LibrarySubjects:BHL Collections:
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By: Pohl, Richard Walter,Edition:Publication info: Chicago, Ill, Field Museum of Natural History, 1976Volume: v.38:no.2 (1976)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Pohl, Richard Walter, - Burger, William C.Edition:Publication info: [Chicago], Field Museum of Natural History, 1980Volume: n.s. no.4 (1980)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Pohl, Richard Walter,Type: ArticleIn: Fieldiana. BotanyVolume: 4Series:Issue:Date: 1980Page Range: 1--608Publication Info: [Chicago], Chicago Natural History Museum, 1958-Subjects: