University of Illinois Urbana-Champaign

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Showing 4261–4290 of 4,422 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 Driftless area assessment
Driftless area assessment
Submitter: Steven Mccauley

Thumbnail for Off-line. 14:1-9, 9-12
Off-line. 14:1-9, 9-12
Submitter: Howard Ding