University of Illinois Urbana-Champaign

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Showing 8101–8130 of 14,591 items
Thumbnail for Hill Prairies of Illinois
Hill Prairies of Illinois
Evers, Robert August

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Hydrogeologic and geochemical studies of selected natural radioisotopes and barium in groundwater in Illinois
Hydrogeologic and geochemical studies of selected natural radioisotopes and barium in groundwater in Illinois
Gilkeson, Robert H.; Cartwright, Keros; Cowart, James B.; Holtzman, Richard B.