University of Illinois Urbana-Champaign

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Showing 721–750 of 1,432 items
Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Public ground-water supplies in DuPage county
Public ground-water supplies in DuPage county
Woller, Dorothy M.; Sanderson, Ellis W.; Sargent, Michael L.

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, b. 1891.