APA

Cunningham S., Bowler B., . (2002). New Headway Pronunciation Course. Intermediate. Oxford: Oxford University Press.

Chicago

Cunningham S, Bowler B, . 2002. New Headway Pronunciation Course. Intermediate. Oxford: Oxford University Press.

Harvard

Cunningham S., Bowler B., . (2002). New Headway Pronunciation Course. Intermediate. Oxford: Oxford University Press.

MLA

Cunningham S, Bowler B, . New Headway Pronunciation Course. Intermediate. Oxford: Oxford University Press. 2002.