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Author
- Geological Survey (U.S.)4
- Moore, Samuel L.4
- Roehler, Henry W.4
- Gildersleeve, Benjamin, 1907-20033
- Hansen, Dan E.3
- Hinrichs, E. Neal3
- Jackson, G. D.3
- Weir, Gordon W. (Gordon Whitney), 1922-20113
- Black, Douglas F. B.2
- Blade, Lawrence V. (Lawrence Vernon), 1917-2
- Danilchik, Walter2
- Haney, Donald C.2
- Johnson, William D., Jr.2
- Lewis, Richard Quintin, 1919-2
- Moore, Frank B. (Frank Baker), 1912-2
- Outerbridge, William F.2
- Ping, Russell G.2
- Rice, Charles L.2
- Sable, Edward G. (Edward George), 1924-2
- Stone, Byron D.2
