Cita APA

Soars, L., & Soars, J. (2003). New headway: Advanced : Student's book. Oxford: Oxford Univ. Press.

Citación estilo Chicago

Soars, Liz, y John Soars. New Headway: Advanced : Student's Book. Oxford: Oxford Univ. Press, 2003.

Cita MLA

Soars, Liz, y John Soars. New Headway: Advanced : Student's Book. Oxford: Oxford Univ. Press, 2003.