Blackwell, A., & Naber, T. (2007). Open forum 2: Academic listening and speaking. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Blackwell, Angela, , Therese Naber. Open Forum 2: Academic Listening and Speaking. Oxford: Oxford Univ. Press, 2007.
MLA引用形式Blackwell, Angela, , Therese Naber. Open Forum 2: Academic Listening and Speaking. Oxford: Oxford Univ. Press, 2007.
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