University of Illinois Urbana-Champaign

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Showing 361–390 of 1,644 items
Thumbnail for Preliminary Report  on Ground-Water Resources of  the Chicago Region, Illinois
Preliminary Report on Ground-Water Resources of the Chicago Region, Illinois
Suter, Max; Bergstrom, Robert Edward; Smith, H.F.; Emrich, Grover Harry; Walton, William Clarence; Larson, T.E.

Thumbnail for Caring for the fertility of Illinois soils
Caring for the fertility of Illinois soils
Smith, Louie Henrie; Bauer, Frederick Charles