University of Illinois Urbana-Champaign

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Showing 1801–1830 of 2,016 items
Thumbnail for Undergraduate programs; catalog 1979/81
Undergraduate programs; catalog 1979/81
University of Illinois at Urbana-Champaign

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.

Thumbnail for Upper Des Plaines River area assessment
Upper Des Plaines River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division