University of Illinois Urbana-Champaign

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Showing 3931–3960 of 4,289 items
Thumbnail for Illinois research. [vol.6-vol.10]
Illinois research. [vol.6-vol.10]
Submitter: Howard Ding

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.