Cosgrove, A. (2009). Premium (Workbook with key). Harlow: Pearson Longman.
シカゴスタイル引用形Cosgrove, Anthony. Premium (Workbook With Key). Harlow: Pearson Longman, 2009.
MLA引用形式Cosgrove, Anthony. Premium (Workbook With Key). Harlow: Pearson Longman, 2009.
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