Παραπομπή APA

Yule, G. (2010). The study of language (4th ed.). Cambridge University Press.

Παραπομπή Chicago Style

Yule, George. The Study of Language. 4th ed. Cambridge, UK ; New York: Cambridge University Press, 2010.

Παραπομπή MLA

Yule, George. The Study of Language. 4th ed. Cambridge University Press, 2010.