APA (7th ed.) Citation

Linden, E. (1976). Apes, men, and language. Penguin books.

Chicago Style (17th ed.) Citation

Linden, Eugene. Apes, Men, and Language. New York: Penguin books, 1976.

MLA (9th ed.) Citation

Linden, Eugene. Apes, Men, and Language. Penguin books, 1976.