APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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