APA (7th ed.) Citation
Soars, L., & Soars, J. (2009). New headway: Intermediate (4th ed.). Oxford University Press.
Chicago Style (17th ed.) Citation
Soars, Liz, and John Soars. New Headway: Intermediate. 4th ed. Oxford: Oxford University Press, 2009.
MLA (9th ed.) Citation
Soars, Liz, and John Soars. New Headway: Intermediate. 4th ed. Oxford University Press, 2009.
Warning: These citations may not always be 100% accurate.