University of Illinois Urbana-Champaign

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Showing 7261–7290 of 16,444 items
Thumbnail for Distribution of boghead algae in Illinois Basin coal beds
Distribution of boghead algae in Illinois Basin coal beds
Peppers, Russel Allen; Harvey, Richard David

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