University of Illinois Urbana-Champaign

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Showing 3421–3450 of 3,765 items
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 Faculty letter / no. 151-22
Faculty letter / no. 151-22
Submitter: William Ingram