Soars, L., & Soars, J. (2003). New Headway: Intermediate workbook with key (3rd ed.). Oxford University Press.
Chicagoスタイル(17版)引用形式Soars, Liz, , John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford: Oxford University Press, 2003.
MLA(8版)引用形式Soars, Liz, , John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford University Press, 2003.
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