University of Illinois Urbana-Champaign

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Showing 2161–2190 of 3,531 items
Thumbnail for A Regional Ground-Water Quality Characterization of the Rockford Area, Winnebago County, Illinois
A Regional Ground-Water Quality Characterization of the Rockford Area, Winnebago County, Illinois
Wehrmann, H. Allen; Holm, Thomas R.; Le Seur, Linda P.; Curtiss, Charles D. III

Thumbnail for Irrigation Practices in Illinois
Irrigation Practices in Illinois
Bowman, Jean A.; Kimpel, Brian C.

Thumbnail for Year-book for 1908
Year-book for 1908
Illinois State Geological Survey