Cita APA

Soars, L., & Soars, J. (2003). New Headway: Intermediate workbook with key (3rd ed.). Oxford University Press.

Citación estilo Chicago

Soars, Liz, and John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford: Oxford University Press, 2003.

Cita MLA

Soars, Liz, and John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford University Press, 2003.