Beneficiation of Unweathered Indian Calcareous Phosphate Rock by Calcination and Hydration by Richard A. Watson, Dan Martin, A. W. Deurbrouck, James A. Powell, John E. Zeilinger, Bernard J. Scheiner, Willard L. Hunter, Robert B. Schluter, Philip C. Good, Fred N. Kissell, Willard John Tesch, John E. Pahlman, William C. McBee, Thomas A. Sullivan, David Schlain, Danny L. Pool, Robert P. Vinson, Richard Edward Lindstrom, Gerald R. Smith, Edwin E. Maust, John A. Breslin, Anthony J. Strazisar, Charles M. McCulloch, Yeal Miron, Frank X. McCawley, H. Kenneth Sacks, Jack E. Fraley, James J. Snodgrass, P. E. Richardson, Peter L. Ruzzi, Robert E. Simpson, Garrett R. Hyde, Richard L. Stein, Richard W. Watson