University of Illinois Urbana-Champaign

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Showing 481–510 of 7,606 items
Thumbnail for Chemical characteristics of banded ingredients of coal
Chemical characteristics of banded ingredients of coal
Rees, Orin Wainwright; Wagner, William Frederick; Tilbury, Wilbur Glenn, joint author

Thumbnail for The occluded gases in coal
The occluded gases in coal
Parr, Samuel Wilson; Barker, Perry