APA (7th ed.) Citation

Elton, C. S. (1953). The ecology of animals (3d ed.). Methuen.

Chicago Style (17th ed.) Citation

Elton, Charles S. The Ecology of Animals. 3d ed. London: Methuen, 1953.

MLA (8th ed.) Citation

Elton, Charles S. The Ecology of Animals. 3d ed. Methuen, 1953.