- US US-IaGG Pamphlet 02.0-02.2 p3m-p14-02.2 p9, p10, p11-02.2 p10
- Unidad documental simple
124 p. 100 plates. Provisional edition. photographs by Joseph A. Tosi, Jr. Published by the Tropical Science Center, San Jose, Costa Rica. Central American Field Program of ACM. With this are bound: Tosi, J. A. Climatic control of terrestrial ecosystems, and Tosi J. A. and Voertman, R. F. Some environmental factors in the economic development of the tropics.