Cita APA

Soars, J., & Soars, L. (1994). Headway: Student's book,. Oxford: Oxford University Press.

Citación estilo Chicago

Soars, John., y Liz Soars. Headway: Student's Book,. Oxford: Oxford University Press, 1994.

Cita MLA

Soars, John., y Liz Soars. Headway: Student's Book,. Oxford: Oxford University Press, 1994.