Bowler B. Bill & Cunningham S. Sarah. (2001). New Headway. Pronunciation Course. Upper-Intermediate. Oxford, Oxford University Press, 2001.
Chicagoスタイル(17版)引用形式Bowler B. Bill , Cunningham S. Sarah. New Headway. Pronunciation Course. Upper-Intermediate. Oxford, Oxford University Press, 2001, 2001.
MLA(9版)引用形式Bowler B. Bill , Cunningham S. Sarah. New Headway. Pronunciation Course. Upper-Intermediate. Oxford, Oxford University Press, 2001, 2001.
警告: この引用は必ずしも正確ではありません.