APA (7th ed.) Zitazioa

Buck, G. (2001). Assessing listening. Cambridge University.

Chicago Style (17th ed.) Zitazioa

Buck, Gary. Assessing Listening. Cambridge, England, United Kingdom: Cambridge University, 2001.

MLA (9th ed.) Zitazioa

Buck, Gary. Assessing Listening. Cambridge University, 2001.