Cita APA (7a ed.)

Sapir, E. (1970). Language: An introduction to the study of speech. Rupert Hart-Davis.

Cita Chicago Style (17a ed.)

Sapir, Edward. Language: An Introduction to the Study of Speech. London: Rupert Hart-Davis, 1970.

Cita MLA (9a ed.)

Sapir, Edward. Language: An Introduction to the Study of Speech. Rupert Hart-Davis, 1970.