APA (7th ed.) Citation

Ruhlen, M. (1994). The origin of language: Tracing the evolution of the mother tongue. Wiley.

Chicago Style (17th ed.) Citation

Ruhlen, Merritt. The Origin of Language: Tracing the Evolution of the Mother Tongue. New York: Wiley, 1994.

MLA (9th ed.) Citation

Ruhlen, Merritt. The Origin of Language: Tracing the Evolution of the Mother Tongue. Wiley, 1994.