Παραπομπή APA

Yules, G. (1997). Study of Language (2nd.). Cambridge University Press.

Παραπομπή Chicago Style

Yules, Geroge. Study of Language. 2nd. Cambridge: Cambridge University Press, 1997.

Παραπομπή MLA

Yules, Geroge. Study of Language. 2nd. Cambridge University Press, 1997.