University of Illinois Urbana-Champaign

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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 Technical Progress Report
Technical Progress Report
Digital Computer Laboratory. University of Illinois at Urbana-Champaign