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- Survey of Kenya1
- Swift, Charles Moore1
- Tanzania1
- Taylor, Alfred R.1
- Trace, Robert Denny, 1917-1
- Trask, N. J. (Newell Jefferson)1
- Trein, E.1
- Trien, E.1
- United States. Defense Intelligence Agency1
- United States. Forest Service. Eastern Region1
- United States. Forest Service. Intermountain Region1
- United States. Forest Service. Southern Region1
- Van Everdingen, R. O.1
- Voegelin, C. F. (Charles Frederick), 1906-1
- Walker, George Walton, 1921-1
- West Virginia Geological and Economic Survey1
- Wilcox, Ray E. (Ray Everett), 1912-1
- Wolcott, Don E.1
- Wolfe, W. J.1
- Zen, E-an, 1928-1
