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By: Cummings, Kevin S. - Grady, James M. - Burr, Brooks M. - Illinois. Natural History Survey DivisionEdition:Publication info: Champaign, Ill, State of Illinois, Dept. of Energy and Natural Resources, Natural History Survey Division, [1984]Volume: 122Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections: