APA (7th ed.) Citation

Steklis, H. D., & Lancaster, J. (1976). Origins and evolution of language and speech. New York Academy of Sciences.

Chicago Style (17th ed.) Citation

Steklis, Horst D., and Jane Lancaster. Origins and Evolution of Language and Speech. New York: New York Academy of Sciences, 1976.

MLA (9th ed.) Citation

Steklis, Horst D., and Jane Lancaster. Origins and Evolution of Language and Speech. New York Academy of Sciences, 1976.