Cita APA (7th ed.)

Yule, G. (1996). The study of language (2a. ed.). University of Cambridge.

Cita Chicago (17th ed.)

Yule, George. The Study of Language. 2a. ed. Nueva York: University of Cambridge, 1996.

Cita MLA (9th ed.)

Yule, George. The Study of Language. 2a. ed. University of Cambridge, 1996.