Cita APA

Clapham, W. B. (1973). Natural ecosystems. Macmillan Publishing Company Inc.

Citación estilo Chicago

Clapham, W B. Natural Ecosystems. New York: Macmillan Publishing Company Inc, 1973.

Cita MLA

Clapham, W B. Natural Ecosystems. Macmillan Publishing Company Inc, 1973.