MLA

Rosenstock-Huessy, Eugen, and Harold M Stahmer. The Origin of Speech. Norwich: Argo Books, 1981.

APA

Rosenstock-Huessy, E., & Stahmer, H. M. (1981). The origin of speech. Norwich: Argo Books.

Chicago

Rosenstock-Huessy, Eugen, and Harold M. Stahmer. The Origin of Speech. Norwich: Argo Books, 1981.