The development of agriculture and forestry in the tropics; patterns, problems, and promise

Phillips, John F. V. (John Frederick Vicars), 1899-1987.
New York : Praeger, [1967, c1961]
Rev. ed.

The origins of agriculture in the lowland neotropics

Piperno, Dolores R.
San Diego : Academic Press, [1998]

Problems of humid tropical regions. Problemes des régions tropicales humides.

Unesco.
[Paris], [publisher not identified], [1958]

Properties and management of soils in the tropics

Sánchez, Pedro A., 1940-
New York : Wiley, [1976]

Tropical agriculture; the development of production.

Wrigley, Gordon.
New York : Praeger, [1969]