University of Illinois Urbana-Champaign

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Showing 121–150 of 662 items
Thumbnail for Hydrogeology of the Silurian dolomite aquifer in parts of Northwestern Illinois
Hydrogeology of the Silurian dolomite aquifer in parts of Northwestern Illinois
Larson, Timothy H.; Graese, Anne M.; Orozco, Phillip G.

Thumbnail for Classification of the Pennsylvanian strata of Illinois
Classification of the Pennsylvanian strata of Illinois
Kosanke, Robert M.; Simon, J.A.; Wanless, H.R.; Willman, H.B.