University of Illinois Urbana-Champaign

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Showing 2851–2880 of 4,023 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 Guide to the geology, hydrogeology, history, archaeology, and biotic ecology of the Driftless Area of Northwestern Illinois, Jo Daviess County
Guide to the geology, hydrogeology, history, archaeology, and biotic ecology of the Driftless Area of Northwestern Illinois, Jo Daviess County
Panno, S.V.; Millhouse, Philip G.; Nyboer, Randy W.; Watson, Daryl; Kelly, Walton R.; Anderson, Lisa M.; Abert, Curtis C.; Luman, Donald E.