Cita APA

Soars, L., & Soars, J. (2006). New headway: Elementary : Student's book (3rd ed.). Oxford: Oxford Univ. Press.

Citación estilo Chicago

Soars, Liz, y John Soars. New Headway: Elementary : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2006.

Cita MLA

Soars, Liz, y John Soars. New Headway: Elementary : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2006.