University of Illinois Urbana-Champaign

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Showing 271–300 of 382 items
Thumbnail for Pleistocene stratigraphy of Illinois
Pleistocene stratigraphy of Illinois
Willman, Harold Bowen; Frye, John Chapman

Thumbnail for Annual register. 1934-35
Annual register. 1934-35
University of Illinois at Urbana-Champaign

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

Thumbnail for Annual register. 1935-36
Annual register. 1935-36
University of Illinois at Urbana-Champaign