APA

Meggers B. J., Ayensu E. S. & Duckworth W. D. (1973). Tropical forest ecosystems in Africa and South America : a comparative review. Washington: Smithsonian Institution Press.

Chicago

Meggers Betty J, Ayensu Edward S and Duckworth W Donald. 1973. Tropical forest ecosystems in Africa and South America : a comparative review. Washington: Smithsonian Institution Press.

Harvard

Meggers B. J., Ayensu E. S. and Duckworth W. D. (1973). Tropical forest ecosystems in Africa and South America : a comparative review. Washington: Smithsonian Institution Press.

MLA

Meggers Betty J, Ayensu Edward S and Duckworth W Donald. Tropical forest ecosystems in Africa and South America : a comparative review. Washington: Smithsonian Institution Press. 1973.