University of Illinois Urbana-Champaign

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Showing 4831–4860 of 5,213 items
Thumbnail for Energy conservation in Illinois : reports I and II / CAC No. 141
Energy conservation in Illinois : reports I and II / CAC No. 141
Herendeen, Robert A.; Kirkpatrick, Ken; Skelton, James

Thumbnail for Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.