University of Illinois Urbana-Champaign

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Showing 1141–1170 of 1,470 items
Thumbnail for Big Muddy River area assessment
Big Muddy River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Economics in action: three essays
Economics in action: three essays
Karimi, Seyed Mohammad

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.