Cita APA

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

Chicago Style Citation

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

Cita MLA

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