Oxenden, C., & Koenig, C. L. (2008). American English File: Student book 3. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Oxenden, Clive, , Christina Latham Koenig. American English File: Student Book 3. Oxford: Oxford Univ. Press, 2008.
MLA引用形式Oxenden, Clive, , Christina Latham Koenig. American English File: Student Book 3. Oxford: Oxford Univ. Press, 2008.
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