University of Illinois Urbana-Champaign

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Showing 6871–6900 of 7,573 items
Thumbnail for Illinois crop protection technology conference: Proceedings
Illinois crop protection technology conference: Proceedings
University of Illinois at Urbana-Champaign. College of Agricultural, Consumer, and Environmental Sciences. Cooperative Extension Service

Thumbnail for It says here / 1948-52
It says here / 1948-52
Submitter: Howard Ding

Thumbnail for Upper Rock River area assessment
Upper Rock River area assessment
Illinois Department of Natural Resources, Office of Scientific Research; Illinois Department of Natural Resources, Illinois State Water Survey