Soars, L., & Soars, J. (2004). New headway: English course :elementary student's book (Intermediate Workbook :with key.). Oxford University Press.
Chicagoスタイル(17版)引用形式Soars, Liz, , John Soars. New Headway: English Course :elementary Student's Book. Intermediate Workbook :with key. Oxford: Oxford University Press, 2004.
MLA(8版)引用形式Soars, Liz, , John Soars. New Headway: English Course :elementary Student's Book. Intermediate Workbook :with key. Oxford University Press, 2004.
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