APA (7e ed.) Bronvermelding

Soars, L., & Soars, J. (1996). New Headway English Course: Intermediate Workbook : with key (4th impression.). Oxford University Press.

Chicago (17e ed.) Bronvermelding

Soars, Liz, en John Soars. New Headway English Course: Intermediate Workbook : With Key. 4th impression. Oxford: Oxford University Press, 1996.

MLA (8e ed.) Bronvermelding

Soars, Liz, en John Soars. New Headway English Course: Intermediate Workbook : With Key. 4th impression. Oxford University Press, 1996.