APA-referens (7:e uppl.)

Soars, L., & Soars, J. (2003). New Headway: Intermediate workbook with key (3rd ed.). Oxford University Press.

Chicago-referens (17:e uppl.)

Soars, Liz, och John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford: Oxford University Press, 2003.

MLA-referens (8:e uppl.)

Soars, Liz, och John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford University Press, 2003.