University of Illinois Urbana-Champaign

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Showing 4081–4110 of 4,366 items
Thumbnail for Illinois agricultural pesticides conference: Proceedings
Illinois agricultural pesticides conference: Proceedings
University of Illinois at Urbana-Champaign. College of Agricultural, Consumer, and Environmental Sciences. Cooperative Extension Service

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.