APA (7e ed.) Bronvermelding

Bowler B. Bill & Parminter S. Sue. (2001). New Headway. Pronunciation Course. Pre-Intermediate. Oxford, Oxford University Press, 2001.

Chicago (17e ed.) Bronvermelding

Bowler B. Bill en Parminter S. Sue. New Headway. Pronunciation Course. Pre-Intermediate. Oxford, Oxford University Press, 2001, 2001.

MLA (9e ed.) Bronvermelding

Bowler B. Bill en Parminter S. Sue. New Headway. Pronunciation Course. Pre-Intermediate. Oxford, Oxford University Press, 2001, 2001.