University of Illinois Urbana-Champaign

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Showing 5221–5250 of 5,302 items
Thumbnail for Catalog of Devonian and deeper tests in central Illinois
Catalog of Devonian and deeper tests in central Illinois
Stevenson, D.L.; Keys, John N.; Cluff, Robert M.

Thumbnail for Kaskaskia River area assessment
Kaskaskia River area assessment
Submitter: Steven Mccauley

Thumbnail for Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.