Cita APA (7a ed.)

Yerkes, R. M., & Haslerud, G. M. (1979). The mental life of monkeys and apes (1916). Scholars' Facsmiles & Reprints.

Cita Chicago Style (17a ed.)

Yerkes, Robert M., y George Martin Haslerud. The Mental Life of Monkeys and Apes (1916). Delmar, New York: Scholars' Facsmiles & Reprints, 1979.

Cita MLA (9a ed.)

Yerkes, Robert M., y George Martin Haslerud. The Mental Life of Monkeys and Apes (1916). Scholars' Facsmiles & Reprints, 1979.