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Author
- Richmond, Gerald Martin, 1914-3
- Richter, Donald H.3
- Pierce, Kenneth Lee2
- Cagle, Joseph W.1
- Clark, Malcolm M.1
- Crandell, Dwight Raymond, 1923-1
- Denson, N. M. (Norman MacLaren), 1914-1
- Foxworthy, B. L. (Bruce LaVerne), 1925-1
- Geological Survey (U.S.)1
- Hansen, Robert E.1
- Keefer, William Richard, 1924-1
- Radbruch-Hall, Dorothy H., 1920-1
- Schlee, John Stevens, 1928-1
