University of Illinois Urbana-Champaign

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Showing 2161–2190 of 2,666 items
Thumbnail for Thorn Creek area assessment
Thorn Creek area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Petroleum industry in Illinois in 1956.
Petroleum industry in Illinois in 1956.
Bell, Alfred Hannam; Kline, Virginia Harriet; Pierre, Donald A.