University of Illinois Urbana-Champaign

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Thumbnail for Petrographic and coking characteristics of coal : laboratory study of Illinois coal seams nos. 5 and 6
Petrographic and coking characteristics of coal : laboratory study of Illinois coal seams nos. 5 and 6
Marshall, Charles Edward; Harrison, John A.; Simon, Jack A.; Parker, Margaret A.

Thumbnail for Kishwaukee River area assessment
Kishwaukee River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Three Essays on Regional Economics
Three Essays on Regional Economics
Silva, Carlos Eduardo Lobo E.