Citazione Stile APA (7a Edizione)

Baker, A. (1982). Tree or three?: An elementary pronunciation course. Cambridge University.

Citazione stile Chigago Style (17a edizione)

Baker, Ann. Tree or Three?: An Elementary Pronunciation Course. Cambridge: Cambridge University, 1982.

Citatione MLA (9a ed.)

Baker, Ann. Tree or Three?: An Elementary Pronunciation Course. Cambridge University, 1982.