APA (7e ed.) Bronvermelding

Hewings, M. (1993). Pronunciation tasks: A course for pre-intermediate learners. Cambridge University Press.

Chicago (17e ed.) Bronvermelding

Hewings, Martin. Pronunciation Tasks: A Course for Pre-intermediate Learners. United Kingdom: Cambridge University Press, 1993.

MLA (9e ed.) Bronvermelding

Hewings, Martin. Pronunciation Tasks: A Course for Pre-intermediate Learners. Cambridge University Press, 1993.