University of Illinois Urbana-Champaign

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Showing 8551–8580 of 15,659 items
Thumbnail for The classification of coal
The classification of coal
Parr, Samuel Wilson

Thumbnail for Geochemical properties of coal wastes and the toxicological effects on aquatic life
Geochemical properties of coal wastes and the toxicological effects on aquatic life
Roy, William R.; Skelly, T.M.; Krapac, I.G.; Griffin, R.A.; Dickerson, D.R.; Schuller, R.M.; Suloway, J.J.; Shimp, N.F.