Cita APA

Whittaker, R. H. 1. -., & Whittaker, R. H. 1. -. (1975). Communities and ecosystems (2. edition.). New York, New York: Macmillan.

Citación estilo Chicago

Whittaker, Robert Harding 1920 -, y Robert Harding 1920 - Whittaker. Communities and Ecosystems. 2. edition. New York, New York: Macmillan, 1975.

Cita MLA

Whittaker, Robert Harding 1920 -, y Robert Harding 1920 - Whittaker. Communities and Ecosystems. 2. edition. New York, New York: Macmillan, 1975.