Yule, G. (2013). The Study of language (4th ed.). Cambridge University Press.
Chicago Style aipamenaYule, George. The Study of Language. 4th ed. New York: Cambridge University Press, 2013.
MLA aipamenaYule, George. The Study of Language. 4th ed. Cambridge University Press, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.