University of Illinois Urbana-Champaign

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Showing 541–570 of 719 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 Illinois magazine.
Illinois magazine.
Submitter: Timothy Donohue