Cita APA

Soars, J., & Soars, L. (2010). New headway: Beginner : workbook with key (3rd ed.). Oxford: Oxford University Press.

Citación estilo Chicago

Soars, John, and Liz Soars. New Headway: Beginner : Workbook With Key. 3rd ed. Oxford: Oxford University Press, 2010.

Cita MLA

Soars, John, and Liz Soars. New Headway: Beginner : Workbook With Key. 3rd ed. Oxford: Oxford University Press, 2010.