Cita APA (7a ed.)

Oxenden, C., Latham Koenig, C., & Hamilton, G. (2002). English file Upper intermediate: Teacher's book. Oxford University Press.

Cita Chicago Style (17a ed.)

Oxenden, Clive, Christina Latham Koenig, y Gill Hamilton. English File Upper Intermediate: Teacher's Book. Oxford: Oxford University Press, 2002.

Cita MLA (9a ed.)

Oxenden, Clive, et al. English File Upper Intermediate: Teacher's Book. Oxford University Press, 2002.