University of Illinois Urbana-Champaign

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Showing 2521–2550 of 2,624 items
Thumbnail for Catalog of Devonian and deeper tests in central Illinois
Catalog of Devonian and deeper tests in central Illinois
Stevenson, D.L.; Keys, John N.; Cluff, Robert M.

Thumbnail for Cache River Area Assessment
Cache River Area Assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Pennsylvanian fusulinidae of Illinois,
Pennsylvanian fusulinidae of Illinois,
Dunbar, Carl O.; Henbest, Lloyd G.; Weller, J. Marvin