APA-referens (7:e uppl.)

Yule, G. (1985). The study of language: An introduction.

Chicago-referens (17:e uppl.)

Yule, George. The Study of Language: An Introduction. Cambridge Cambridgeshire, 1985.

MLA-referens (9:e uppl.)

Yule, George. The Study of Language: An Introduction. 1985.