University of Illinois Urbana-Champaign

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Showing 391–420 of 869 items
Thumbnail for Annual newsletter / 1980-85
Annual newsletter / 1980-85
University of Illinois at Urbana-Champaign. Deptartment of Geology

Thumbnail for Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.