Dubicka, I. (2007). Market leader: Avanced business English. England: Pearson Education Ltd.
シカゴスタイル引用形Dubicka, Iwonna. Market Leader: Avanced Business English. England: Pearson Education Ltd, 2007.
MLA引用形式Dubicka, Iwonna. Market Leader: Avanced Business English. England: Pearson Education Ltd, 2007.
警告: この引用は必ずしも正確ではありません.