Billy J. Moore / Franklin D. Cooper / James Paone / Martin Berman / Paul R. Jones / Philip Cochran Tully / United States. Bureau of Mines / United States. Bureau of Mines. Mineral Resources Technology / William Russell Barton / Lowell Stroud / Raymond D. Shrewsbury / Sabri Ergun / Sidney Katell / William E. Bruce / Roger J. Morrell |