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Author
- Lewis, Richard Quintin, 1919-5
- Hemphill, William R. (William Ross), 1930-4
- Geological Survey (U.S.)3
- Sable, V. H.2
- Smith, J. Hiram (James Hiram), 1916-2
- Taylor, Alfred R.2
- Thaden, Robert E., 1924-2
- Connor, Carol Waite1
- Covington, H. R.1
- Hackman, Robert J.1
- Phalen, W. C. (William Clifton), 1877-19491
- Platt, J. N.1
- Ray, Richard G. (Richard Godfrey), 1920-1
- Russell, Israel C. (Israel Cook), 1852-19061
- Sharps, Joseph A.1
- Williams, Paul L. (Paul Lincoln), 1932-1
