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Author
- Geological Survey (U.S.)5
- Fabiano, Eugene B.2
- Hammond, Edwin Hughes, 1919-2
- Byers, Virginia P.1
- Dolan, Robert1
- Izett, Glen Arthur, 1928-1
- Jones, W. J. (William Jerome), 1934-1
- King, Philip B., 1903-19871
- Peddie, Norman W.1
- Tooker, Edwin W., 1923-20131
- Trumbull, James, 1927-1
- United States. Forest Service1
- United States. Soil Conservation Service1
