APA Citation

Oxenden, C., & Koenig, C. L. (2001). English file: Upper-Intermediate student's book. Oxford: Oxford Univ. Press.

Trích dẫn kiểu Chicago

Oxenden, Clive, và Christina Latham Koenig. English File: Upper-Intermediate Student's Book. Oxford: Oxford Univ. Press, 2001.

MLA Citation

Oxenden, Clive, và Christina Latham Koenig. English File: Upper-Intermediate Student's Book. Oxford: Oxford Univ. Press, 2001.

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