University of Illinois Urbana-Champaign

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Showing 6361–6390 of 10,343 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 Illinois birds: tyrannidae
Illinois birds: tyrannidae
Graber, Jean W.; Graber, Richard R.; Kirk, Ethelyn L.