APA (7th ed.) Zitazioa

Sapir, E. (1949). Language: An introduction to the study of speech. Harcourt,Brace & World.

Chicago Style (17th ed.) Zitazioa

Sapir, Edward. Language: An Introduction to the Study of Speech. New York: Harcourt,Brace & World, 1949.

MLA (9th ed.) Zitazioa

Sapir, Edward. Language: An Introduction to the Study of Speech. Harcourt,Brace & World, 1949.