Cita APA

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

Citación estilo Chicago

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

Cita MLA

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