University of Illinois Urbana-Champaign

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Showing 2761–2790 of 3,540 items
Thumbnail for Engineering and legal aspects of land drainage in Illinois.
Engineering and legal aspects of land drainage in Illinois.
Pickels, George Wellington; Leonard, Frank Bonner

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 Annual newsletter / 1968-80
Annual newsletter / 1968-80
University of Illinois at Urbana-Champaign. Deptartment of Geology