Barraclough, C. (2008). Activate! B1+: Workbook. Pearson Education limited: England.
シカゴスタイル引用形Barraclough, Carolyn. Activate! B1+: Workbook. Pearson Education limited: England, 2008.
MLA引用形式Barraclough, Carolyn. Activate! B1+: Workbook. Pearson Education limited: England, 2008.
警告: この引用は必ずしも正確ではありません.