University of Illinois Urbana-Champaign

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Showing 301–330 of 1,313 items
Thumbnail for Petroleum industry in Illinois, 1984. Oil and gas developments
Petroleum industry in Illinois, 1984. Oil and gas developments
Van Den Berg, Jacob; Treworgy, Janis D.; Elyn, Jaclyn Rendall

Thumbnail for News from the Field; Personnel
News from the Field; Personnel
Submitter: Howard Ding

Thumbnail for Gas analysis by positive rays
Gas analysis by positive rays
Hill, Charles Francis

Thumbnail for Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.