Cita APA (7th ed.)

Hewings, M. (1993). Pronunciation tasks: A course for pre-intermediate studients. Teacher's Book. Cambridge University Press.

Cita Chicago (17th ed.)

Hewings, Martin. Pronunciation Tasks: A Course for Pre-intermediate Studients. Teacher's Book. Nueva York: Cambridge University Press, 1993.

Cita MLA (9th ed.)

Hewings, Martin. Pronunciation Tasks: A Course for Pre-intermediate Studients. Teacher's Book. Cambridge University Press, 1993.