APA (7th ed.) Zitazioa

Baker, A. (2006). Tree or Three?: An elementary pronunciation course (2a. ed.). Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Baker, Ann. Tree or Three?: An Elementary Pronunciation Course. 2a. ed. Cambridge University Press, 2006.

MLA (9th ed.) Zitazioa

Baker, Ann. Tree or Three?: An Elementary Pronunciation Course. 2a. ed. Cambridge University Press, 2006.