APA (7th ed.) Citation

Soars, J., Soars, L., & Wheeldon, S. (2011). New headway: Pre-intermediate : workbook with key (3rd ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Soars, John, Liz Soars, and Sylvia Wheeldon. New Headway: Pre-intermediate : Workbook with Key. 3rd ed. Oxford: Oxford University Press, 2011.

MLA (9th ed.) Citation

Soars, John, et al. New Headway: Pre-intermediate : Workbook with Key. 3rd ed. Oxford University Press, 2011.