University of Illinois Urbana-Champaign

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Showing 5551–5580 of 6,503 items
Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

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

Thumbnail for La Moine River area assessment
La Moine River area assessment
Submitter: Steven Mccauley