Cita APA

Soars, J., & Soars, L. (2012). New Headway Pre-intermediate: Student's book (4ta ed.). Oxford: Oxford University Press.

Citación estilo Chicago

Soars, John, and Liz Soars. New Headway Pre-intermediate: Student's Book. 4ta ed. Oxford: Oxford University Press, 2012.

Cita MLA

Soars, John, and Liz Soars. New Headway Pre-intermediate: Student's Book. 4ta ed. Oxford: Oxford University Press, 2012.