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By: Leonard, A. Byron (Arthur Byron), - Frye, John Chapman,Edition:Publication info: Urbana, Illinois State Geological Survey, 1960Volume: Circular no.304Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Leonard, A. Byron (Arthur Byron), - Frye, John Chapman, - Johnson, W. Hilton (William Hilton), - Illinois State Geological Survey.Edition:Publication info: Urbana, Ill, Illinois State Geological Survey, 1971Volume: Circular no.461Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Illinois State Geological Survey. - Frye, John Chapman,Edition:Publication info: Urbana, 1974Volume: Circular no.486Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections: