University of Illinois Urbana-Champaign

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Showing 631–660 of 967 items
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

Thumbnail for General catalog / 1984 sup.
General catalog / 1984 sup.
University of Illinois Film Center

Thumbnail for Kishwaukee River area assessment
Kishwaukee River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis