APA (7th ed.) Citation

Sapir, E. (1949). Language, an introduction to the study of speech. Harcourt.

Chicago Style (17th ed.) Citation

Sapir, Edward. Language, an Introduction to the Study of Speech. New York: Harcourt, 1949.

MLA (9th ed.) Citation

Sapir, Edward. Language, an Introduction to the Study of Speech. Harcourt, 1949.