APA (7th ed.) Citation
Soars, L., & Soars, J. (2005). New Headway: Upper-Intermediate : Student's Book (3. edition, 1. published 2005.). Oxford University Press.
Chicago Style (17th ed.) Citation
Soars, Liz, and John Soars. New Headway: Upper-Intermediate : Student's Book. 3. edition, 1. published 2005. Oxford: Oxford University Press, 2005.
MLA (9th ed.) Citation
Soars, Liz, and John Soars. New Headway: Upper-Intermediate : Student's Book. 3. edition, 1. published 2005. Oxford University Press, 2005.
Warning: These citations may not always be 100% accurate.