Contributors: Edward G. King, Glen L. Cook, Haskiel Roy Shell, Howard H. Heady, Robert Lawrence Marovelli, Robert M. Becker, Robert W. Smith, Thomas A. Henrie, W. M. Mark, D. H. Baker, Edwin B. Cook, L. G. Adams, Robert A. Meyer, Scott W. Hazen, William W. Weller, A. U. Christensen, D. G. Earnshaw, G. U. Dinneen, Hans M. Cassel,
2 ebooks
Publisher: U.S. Department of the Interior, Bureau of Mines
Published: 1960
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