Cita APA (7th ed.)

Soars L. Liz & Soars J. John. (2003). New Headway. Intermediate: Workbook with key. New York, Oxford University Press, 2003.

Cita Chicago (17th ed.)

Soars L. Liz i Soars J. John. New Headway. Intermediate: Workbook with Key. New York, Oxford University Press, 2003, 2003.

Cita MLA (9th ed.)

Soars L. Liz i Soars J. John. New Headway. Intermediate: Workbook with Key. New York, Oxford University Press, 2003, 2003.