Cita APA

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

Citación estilo Chicago

Ayensu, E. S., D. Duckworth, y B. J. Meggers. Tropical Forest Ecosystems in Africa and South America: A Comparative Review. Washington, D. C.: Smithsonian, 1973.

Cita MLA

Ayensu, E. S., D. Duckworth, y B. J. Meggers. Tropical Forest Ecosystems in Africa and South America: A Comparative Review. Washington, D. C.: Smithsonian, 1973.