University of Illinois Urbana-Champaign

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Showing 5971–6000 of 10,273 items
Thumbnail for Distribution of the forms of sulphur in the coal bed
Distribution of the forms of sulphur in the coal bed
Yancey, Harry Fagan; Fraser, Thomas

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