Παραπομπή σε μορφή APA (7η εκδ.)

Hewings, M. (2004). Pronunciation practice activities: A resource book for teaching English pronunciation (1a. ed.). Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hewings, Martin. Pronunciation Practice Activities: A Resource Book for Teaching English Pronunciation. 1a. ed. Cambridge: Cambridge University Press, 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hewings, Martin. Pronunciation Practice Activities: A Resource Book for Teaching English Pronunciation. 1a. ed. Cambridge University Press, 2004.