Cita APA

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

Citación estilo Chicago

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

Cita MLA

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