Soars J. John & Soars L. Liz. (1996). Headway. Pre-intermediate: Workbook. Oxford, Oxford University Press, 1996.
Chicagoスタイル(17版)引用形式Soars J. John , Soars L. Liz. Headway. Pre-intermediate: Workbook. Oxford, Oxford University Press, 1996, 1996.
MLA(9版)引用形式Soars J. John , Soars L. Liz. Headway. Pre-intermediate: Workbook. Oxford, Oxford University Press, 1996, 1996.
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