Sayer, M., & Soars, J. (2007). New headway: Pre - Intermediate : Teacher's book (3rd ed.). Oxford: Oxford Univ. Press.
シカゴスタイル引用形Sayer, Mike, , John Soars. New Headway: Pre - Intermediate : Teacher's Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.
MLA引用形式Sayer, Mike, , John Soars. New Headway: Pre - Intermediate : Teacher's Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.
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