APA (7th ed.) Citation

Soars, L. L., & Soars, J. J. (2005). New Headway. Intermediate: Workbook with key (The new edition.). University Press.

Chicago Style (17th ed.) Citation

Soars, L. Liz, and J. John Soars. New Headway. Intermediate: Workbook with Key. The new edition. Oxford: University Press, 2005.

MLA (8th ed.) Citation

Soars, L. Liz, and J. John Soars. New Headway. Intermediate: Workbook with Key. The new edition. University Press, 2005.