University of Illinois Urbana-Champaign

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Showing 421–450 of 1,399 items
Thumbnail for The analysis of coal with phenol as a solvent
The analysis of coal with phenol as a solvent
Parr, Samuel Wilson; Hadley, Harry Fielding

Thumbnail for Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

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