Manganese Resources of the Batesville District, Arkansas (in Three Parts) by Robert C. Johnson, Robert D. Smith, James S. Browning, Thomas L. McVay, Raymond W. Hiteshue, Samuel Arthur Friedman, Henry M. Harris, Sebastian J. Aresco, Albert W. Deurbrouck, D. W. Bridges, Hal J. Kelly, Raymond O. Dannenberg, J. L. Johnson, Frederick W. Hoertel, John B. Janus, Flora E. Walker, Paul E. Bennett, Robert L. Rough, Martin D. Schlesinger, William E. Eckard, Albert J. Rambosek, F. E. Block, Edward Morrice, Laird Crocker, Cynthia A. Pearson, A. Gene Collins, Harry R. Nicholls, Curtis P. Mabie, David E. Nicholson, R. H. Harrison, Raymond B. Stroud, S. D. Hill, W. E. Dieter, Cathy J. Waters, D. R. Douslin, G. H. Cobb, Harold D. Hess, L. Cohen, Wilbur H. Warwick, William R. Wayment, H. H. Heady, H. R. Shell, M. E. Kundick