University of Illinois Urbana-Champaign

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Showing 3841–3870 of 3,943 items
Thumbnail for Year-book for 1907.
Year-book for 1907.
Illinois State Geological Survey

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 iConference 2008 Proceedings
iConference 2008 Proceedings
Submitter: Heekyung Choi