Soars, L., & Soars, J. (1998). New headway english course: Intermediate student's book. New York: Oxford University Press.
シカゴスタイル引用形Soars, Liz, , John Soars. New Headway English Course: Intermediate Student's Book. New York: Oxford University Press, 1998.
MLA引用形式Soars, Liz, , John Soars. New Headway English Course: Intermediate Student's Book. New York: Oxford University Press, 1998.
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