APA Citatie

Soars, L., & Liz & John Soars. (1998). New Headway English Course: Upper-Intermediate Teacher's book. Oxford: Oxford University Press.

Chicago Style citaat

Soars, Liz, en Liz & John Soars. New Headway English Course: Upper-Intermediate Teacher's Book. Oxford: Oxford University Press, 1998.

MLA citatie

Soars, Liz, en Liz & John Soars. New Headway English Course: Upper-Intermediate Teacher's Book. Oxford: Oxford University Press, 1998.