APA (7th ed.) Citation

Soars & Falla. (2003). New Headway: Advanced workbook with key. Oxford University Press.

Chicago Style (17th ed.) Citation

Soars and Falla. New Headway: Advanced Workbook with Key. New York: Oxford University Press, 2003.

MLA (8th ed.) Citation

Soars and Falla. New Headway: Advanced Workbook with Key. Oxford University Press, 2003.