University of Illinois Urbana-Champaign

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Showing 4801–4830 of 7,309 items
Thumbnail for Thorn Creek area assessment
Thorn Creek area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Unit coal and the composition of coal ash
Unit coal and the composition of coal ash
Parr, Samuel Wilson; Wheeler, Wilfrid Forrest