University of Illinois Urbana-Champaign

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Showing 2221–2250 of 2,592 items
Thumbnail for Upper Des Plaines River area assessment
Upper Des Plaines River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for A directory of Illinois systematists, ecologists, and field biologists
A directory of Illinois systematists, ecologists, and field biologists
Burton, Philip J.; Dennis, Ann; Robertson, Kenneth R.

Thumbnail for Faculty letter / no. 223-283
Faculty letter / no. 223-283
Submitter: William Ingram

Thumbnail for Chicago River/Lake Shore area assessment
Chicago River/Lake Shore area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis