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Author
- Taylor, Frederick C.13
- McGrew, Laura W. (Laura Wenger), 1921-4
- Moore, Frank B. (Frank Baker), 1912-4
- Force, Eric R.3
- Hansen, Wallace R., 1920-3
- Kepferle, Roy Clark, 1926-3
- Luft, Stanley Jeremie, 1927-3
- Moore, Samuel L.3
- Peper, John D.3
- Peterson, Warren Lee, 1925-3
- Danilchik, Walter2
- Geological Survey (U.S.)2
- Kehn, Thomas M.2
- Lemke, Richard W. (Richard Walter), 1913-20032
- McIntosh, Willard L.2
- Pomeroy, John S., 1929-2
- Roehler, Henry W.2
- Seitz, James F. (James Frederick), 1920-2
- Swadley, W. C.2
- Trace, Robert Denny, 1917-2
