University of Illinois Urbana-Champaign

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Showing 2911–2940 of 3,739 items
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.

Thumbnail for Illinois natural areas inventory (vol. 1-2)
Illinois natural areas inventory (vol. 1-2)
University of Illinois at Urbana-Champaign. Deptartment of Landscape Architecture; White, John; Corbin, Calvin C.