Cita APA

Soars, J., & Soars, L. (2014). New headway: Elementary : workbook with key (4th ed.). Oxford: Oxford University Press.

Citación estilo Chicago

Soars, John, and Liz Soars. New Headway: Elementary : Workbook With Key. 4th ed. Oxford: Oxford University Press, 2014.

Cita MLA

Soars, John, and Liz Soars. New Headway: Elementary : Workbook With Key. 4th ed. Oxford: Oxford University Press, 2014.