University of Illinois Urbana-Champaign

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Showing 1801–1830 of 2,653 items
Thumbnail for Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Illinois Agricultural Pesticides Conference: summaries of presentations
Illinois Agricultural Pesticides Conference: summaries of presentations
University of Illinois at Urbana-Champaign. College of Agriculture Cooperative Extension Service