Clarence Nelson Roberts / Daniel Snell Eppelsheimer / Donald Leslie Frizzell / Krishan Kumar Tangri / Pao-Zung Wu / Paul George Herold / Robert J. M. Miller / Robert M. Ponder / University of Missouri. School of Mines and Metallurgy / Aaron J. Miles / E. S. Middour / Ely Schwartz / James Eugene Reynolds / Ved Prakash Maheshwary |