University of Illinois Urbana-Champaign

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Showing 4621–4650 of 6,154 items
Thumbnail for Ground-water development in several areas of Northeastern Illinois
Ground-water development in several areas of Northeastern Illinois
Prickett, Thomas Alvin; Hoover, L.R.; Baker, William H.; Sasman, Robert T.

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.

Thumbnail for Embarras River area assessment
Embarras River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis