University of Illinois Urbana-Champaign

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Showing 5971–6000 of 6,266 items
Thumbnail for Sangamon State University graduate catalog, 1981-1983
Sangamon State University graduate catalog, 1981-1983
Sangamon State University, Office of University Relations

Thumbnail for Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Big Muddy River area assessment
Big Muddy River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division