Baker, A. (2006). Tree or Three?: An elementary pronunciation course (2a. ed.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Baker, Ann. Tree or Three?: An Elementary Pronunciation Course. 2a. ed. Cambridge University Press, 2006.
Lua MLA (9ú heag.)Baker, Ann. Tree or Three?: An Elementary Pronunciation Course. 2a. ed. Cambridge University Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.