APA (7th ed.) Citation

Grzimek, B. (1963). Twenty animals, one man. A. Deutsch.

Chicago Style (17th ed.) Citation

Grzimek, Bernhard. Twenty Animals, One Man. [London]: A. Deutsch, 1963.

MLA (8th ed.) Citation

Grzimek, Bernhard. Twenty Animals, One Man. A. Deutsch, 1963.

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