Cita APA

Soars, L., & Soars, J. (1998). New Headway: English course, Upper intermediate Student's book. Oxford University Press.

Citación estilo Chicago

Soars, Liz, and John Soars. New Headway: English Course, Upper Intermediate Student's Book. Oxford: Oxford University Press, 1998.

Cita MLA

Soars, Liz, and John Soars. New Headway: English Course, Upper Intermediate Student's Book. Oxford University Press, 1998.