Cita APA (7a ed.)

Yule, G. (1995). The Study of language: An introduction. Univ.pr..

Cita Chicago Style (17a ed.)

Yule, George. The Study of Language: An Introduction. Cambridge: Univ.pr., 1995.

Cita MLA (9a ed.)

Yule, George. The Study of Language: An Introduction. Univ.pr., 1995.