University of Illinois Urbana-Champaign

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Showing 6631–6660 of 6,768 items
Thumbnail for Illinois agricultural pest control handbook
Illinois agricultural pest control handbook
University of Illinois at Urbana-Champaign. College of Agriculture Cooperative Extension Service

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 Off-line. 16
Off-line. 16
Submitter: Howard Ding