Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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