Citazione Stile APA (7a Edizione)

Hewings, M., & Goldstein, S. (1998). Pronunciation plus-: Practice through interaction. North american english. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Hewings, Martin, e Sharon Goldstein. Pronunciation Plus-: Practice Through Interaction. North American English. New York, USA: Cambridge University Press, 1998.

Citatione MLA (9a ed.)

Hewings, Martin, e Sharon Goldstein. Pronunciation Plus-: Practice Through Interaction. North American English. Cambridge University Press, 1998.