Cita APA

Smith, R. L. (1990). Ecology and field biology (Ed.4.).

Citación estilo Chicago

Smith, Robert Leo. Ecology and Field Biology. Ed.4. New York, Harper Collins, 1990.

Cita MLA

Smith, Robert Leo. Ecology and Field Biology. Ed.4. 1990.

Warning: These citations may not always be 100% accurate.