Oxenden, C., Latham-Koenig, C., & Hamilton, G. (1999). English file: Intermediate. Teacher's book. Oxford: Oxford University Press.
Citación estilo ChicagoOxenden, Clive, Christina Latham-Koenig, and Gill Hamilton. English File: Intermediate. Teacher's Book. Oxford: Oxford University Press, 1999.
Cita MLAOxenden, Clive, Christina Latham-Koenig, and Gill Hamilton. English File: Intermediate. Teacher's Book. Oxford: Oxford University Press, 1999.
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