Cita APA

Soars, L., & Soars, J. (2001). American Headway: Student book 1. New York: Oxford University Press.

Citación estilo Chicago

Soars, Liz, y John Soars. American Headway: Student Book 1. New York: Oxford University Press, 2001.

Cita MLA

Soars, Liz, y John Soars. American Headway: Student Book 1. New York: Oxford University Press, 2001.