Cita APA

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

Citación estilo Chicago

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

Cita MLA

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