APA (7e ed.) Bronvermelding

Cunningham, S., & Bowler, B. (1999). New headway pronunciation: Intermediate student's practice book. Oxford University Press.

Chicago (17e ed.) Bronvermelding

Cunningham, Sarah, en Bill Bowler. New Headway Pronunciation: Intermediate Student's Practice Book. Oxford: Oxford University Press, 1999.

MLA (9e ed.) Bronvermelding

Cunningham, Sarah, en Bill Bowler. New Headway Pronunciation: Intermediate Student's Practice Book. Oxford University Press, 1999.