Cita APA (7th ed.)

Yule, G. (2006). The Study of language (3rd ed.). u. pr..

Cita Chicago (17th ed.)

Yule, George. The Study of Language. 3rd ed. Cambridge: u. pr., 2006.

Cita MLA (9th ed.)

Yule, George. The Study of Language. 3rd ed. u. pr., 2006.