University of Illinois Urbana-Champaign

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Showing 1051–1080 of 1,236 items
Thumbnail for Cache River Area Assessment
Cache River Area Assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Illinois Technograph v. 077 (1961-1962)
Illinois Technograph v. 077 (1961-1962)
Submitter: Timothy Donohue

Thumbnail for Petroleum industry in Illinois, 1977. Part 1. Oil and gas developments
Petroleum industry in Illinois, 1977. Part 1. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.