University of Illinois Urbana-Champaign

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Showing 511–540 of 4,113 items
Thumbnail for Forms and volatilities of trace minor elements in coal
Forms and volatilities of trace minor elements in coal
Cahill, Richard A.; Shiley, Richard H.; Shimp, Neil F.; Konopka, Kenneth L.; Hinckley, Conrad C.; Smith, Gerard V.; Twardowska, Helena; Saporoschenko, Mykola

Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry