University of Illinois Urbana-Champaign

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Showing 8761–8790 of 39,509 items
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.

Thumbnail for Field Guide to Freshwater Mussels of the Midwest
Field Guide to Freshwater Mussels of the Midwest
Cummings, Kevin S.; Mayer, Christine A.