Cita APA

Gradwohl, J., & Greenberg, R. (1988). Saving the tropical forests. Washington, D. C.: Island.

Citación estilo Chicago

Gradwohl, Judith, y R. Greenberg. Saving the Tropical Forests. Washington, D. C.: Island, 1988.

Cita MLA

Gradwohl, Judith, y R. Greenberg. Saving the Tropical Forests. Washington, D. C.: Island, 1988.