University of Illinois Urbana-Champaign

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Showing 3601–3630 of 4,409 items
Thumbnail for Big Rivers area assessment
Big Rivers area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for The mineral content of Illinois waters
The mineral content of Illinois waters
Bartow, Edward; Udden, Johan August; Parr, Samuel Wilson; Palmer, George Thomas

Thumbnail for Rebirth of Rural America: Rural Migration in the Midwest
Rebirth of Rural America: Rural Migration in the Midwest
Sofranko, Andrew J.; Williams, James D.; Fliegel, Frederick C.; Stuart, Nina G.