University of Illinois Urbana-Champaign

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Showing 4711–4740 of 5,288 items
Thumbnail for It says here / 1963-64
It says here / 1963-64
Submitter: Howard Ding

Thumbnail for Upper Des Plaines River area assessment
Upper Des Plaines 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 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.