University of Illinois Urbana-Champaign

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Showing 121–150 of 1,673 items
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.

Thumbnail for Coke from Illinois coals Illinois
Coke from Illinois coals Illinois
Thiessen, Gilbert; Voskuil, Walter Henry; Grotts, Paul E.