Soars, J., & Soars, L. (2002). American headway starter: Student book. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Soars, John, , Liz Soars. American Headway Starter: Student Book. Oxford: Oxford Univ. Press, 2002.
MLA引用形式Soars, John, , Liz Soars. American Headway Starter: Student Book. Oxford: Oxford Univ. Press, 2002.
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