Cita APA (7th ed.)

Soars, J., & Soars, L. (2000). New headway English course. Oxford University Press.

Cita Chicago (17th ed.)

Soars, John, i Liz Soars. New Headway English Course. New York: Oxford University Press, 2000.

Cita MLA (8th ed.)

Soars, John, i Liz Soars. New Headway English Course. Oxford University Press, 2000.