University of Illinois Urbana-Champaign

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Showing 6931–6960 of 22,261 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 The Forest Tree Plantation
The Forest Tree Plantation
Burrill, Thomas Jonathan; McCluer, George Washington