Oxenden C. Clive & Latham-Koenig C. Christina. (2001). English File. Upper-Intermediate: Student's Book. New York, Oxford University Press, 2001.
Chicagoスタイル(17版)引用形式Oxenden C. Clive , Latham-Koenig C. Christina. English File. Upper-Intermediate: Student's Book. New York, Oxford University Press, 2001, 2001.
MLA(9版)引用形式Oxenden C. Clive , Latham-Koenig C. Christina. English File. Upper-Intermediate: Student's Book. New York, Oxford University Press, 2001, 2001.
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