APA (7th ed.) Citation

Portmann, A. (1967). Animal forms and patterns: A study of the appearance of animals. Schocken Books.

Chicago Style (17th ed.) Citation

Portmann, Adolf. Animal Forms and Patterns: A Study of the Appearance of Animals. New York: Schocken Books, 1967.

MLA (9th ed.) Citation

Portmann, Adolf. Animal Forms and Patterns: A Study of the Appearance of Animals. Schocken Books, 1967.