Cita APA (7a ed.)

Harding, K., Taylor, L., Adrian Vallance, D., & Byrne, T. (2005). International express: Intermediate : teacher's resource book. Oxford University Press.

Cita Chicago Style (17a ed.)

Harding, Keith, Liz Taylor, D'Arcy Adrian Vallance, y Tracy Byrne. International Express: Intermediate : Teacher's Resource Book. London: Oxford University Press, 2005.

Cita MLA (9a ed.)

Harding, Keith, et al. International Express: Intermediate : Teacher's Resource Book. Oxford University Press, 2005.