University of Illinois Urbana-Champaign

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Showing 751–780 of 845 items
Thumbnail for Oil and gas development in Illinois in 1954
Oil and gas development in Illinois in 1954
Bell, Alfred Hannam; Kline, Virginia Harriet

Thumbnail for Annual newsletter / 1980-85
Annual newsletter / 1980-85
University of Illinois at Urbana-Champaign. Deptartment of Geology

Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources