APA (7th ed.) Citation

Ribeiro, A. (1963). When the wolves howl ([1st American ed.].). Macmillan.

Chicago Style (17th ed.) Citation

Ribeiro, Aquilino. When the Wolves Howl. [1st American ed.]. New York: Macmillan, 1963.

MLA (9th ed.) Citation

Ribeiro, Aquilino. When the Wolves Howl. [1st American ed.]. Macmillan, 1963.