Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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