APA Style

COLFER, C, J, P. (1991). Toward sustainable agriculture in the humid tropics: building on the tropsoils experience in Indonesia . : Soil Management Collaborative Research Support Program.

MLA Style

COLFER, Carol, J., Pierce. "Toward sustainable agriculture in the humid tropics: building on the tropsoils experience in Indonesia". : Soil Management Collaborative Research Support Program, 1991. Electronic resources.