Cita APA (7th ed.)

Soars, J., & Soars, L. (2003). New headway: Advanced Student's book. Oxford University Press.

Cita Chicago (17th ed.)

Soars, John, i Liz Soars. New Headway: Advanced Student's Book. New York: Oxford University Press, 2003.

Cita MLA (8th ed.)

Soars, John, i Liz Soars. New Headway: Advanced Student's Book. Oxford University Press, 2003.