APA (7th ed.) Citation

Soars L. John & Soars L. Liz. (2003). New Headway English Course. Elementary: Workbook with key (8th ed.). New York, Oxford University Press, 2003.

Chicago Style (17th ed.) Citation

Soars L. John and Soars L. Liz. New Headway English Course. Elementary: Workbook with Key. 8th ed. New York, Oxford University Press, 2003, 2003.

MLA (9th ed.) Citation

Soars L. John and Soars L. Liz. New Headway English Course. Elementary: Workbook with Key. 8th ed. New York, Oxford University Press, 2003, 2003.