Mortimer, C. (1989). Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp.
シカゴスタイル引用形Mortimer, Colin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp, 1989.
MLA引用形式Mortimer, Colin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp, 1989.
警告: この引用は必ずしも正確ではありません.