University of Illinois Urbana-Champaign

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Showing 4021–4050 of 5,264 items
Thumbnail for Oil and gas development in Illinois during 1951
Oil and gas development in Illinois during 1951
Bell, Alfred Hannam; Kline, Virginia

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 Sidestream elevated pool aeration (SEPA) stations : effects on in-stream dissolved oxygen
Sidestream elevated pool aeration (SEPA) stations : effects on in-stream dissolved oxygen
Butts, Thomas A.; Shackleford, Dana B.; Bergerhouse, Thomas R.