University of Illinois Urbana-Champaign

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Showing 4171–4200 of 4,502 items
Thumbnail for Prairie Parklands area assessment
Prairie Parklands area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Petroleum industry in Illinois, 1965.
Petroleum industry in Illinois, 1965.
Van Den Berg, Jacob; Lawry, T.F.; Mast, Richard F.

Thumbnail for Water-use law in Illinois
Water-use law in Illinois
Mann, Fred L.; Krausz, Norman George Phillip; Ellis, Harold H.