APA-viite (7. p.)

Hewings, M. (2011). Pronunciation tasks: A course for pre-intermediate learners. Cambridge University Press.

Chicago-viite (17. p.)

Hewings, Martin. Pronunciation Tasks: A Course for Pre-intermediate Learners. Cambridge: Cambridge University Press, 2011.

MLA-viite (9. p.)

Hewings, Martin. Pronunciation Tasks: A Course for Pre-intermediate Learners. Cambridge University Press, 2011.