Cita APA

Oxenden, C., & Latham-Koenig, C. (2001). English file: Upper-intermediate student's book. Oxford: Oxford University.

Citación estilo Chicago

Oxenden, Clive, and Christina Latham-Koenig. English File: Upper-intermediate Student's Book. Oxford: Oxford University, 2001.

Cita MLA

Oxenden, Clive, and Christina Latham-Koenig. English File: Upper-intermediate Student's Book. Oxford: Oxford University, 2001.