Cita APA (7a ed.)

Sapir, E. (1949). Language: An Introduction to the Study of Speech. Harvest.

Cita Chicago Style (17a ed.)

Sapir, Edward. Language: An Introduction to the Study of Speech. New York: Harvest, 1949.

Cita MLA (9a ed.)

Sapir, Edward. Language: An Introduction to the Study of Speech. Harvest, 1949.