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By: Illinois. Dept. of Energy and Natural Resources. - Nature of Illinois Foundation.Edition:Publication info: [Springfield, Ill.?], Ill. Dept. of Energy and Natural Resources, the Nature of Ill. Foundation, 1994Volume:Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
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By: Society for the Illinois Scientific Surveys. - Nature of Illinois Foundation.Edition:Publication info: [Springfield, Ill.], Society for the Illinois Scientific Surveys, 1986-Volume: 1-7 (1986-1993)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections: