- Annie G. Smelley, August J. Kwitowski, Daryl E. Radcliffe, George M. Lucich, Jalna R. Zatko, K. J. Liles, Murray Rosen, R. S. DeCesare, Robert F. Holub, Stephen L. Law, Thomas G. Carnahan, United States. Bureau of Mines, Benjamin W. Haynes, Bernard J. Scheiner, Charles Milton Flynn, F. J. Palumbo, H. Heystek, Lewis V. Wade, Philip W. Holland, Raymond M. Stateham, P. M. Sullivan, Roald Edmund Lindstrom, William J. Campbell
· 1979
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No author available
· 1967
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