Cunningham, S., & Bowler, B. (1999). New headway pronunciation: Intermediate student's practice book. Oxford University Press.
Chicagoスタイル(17版)引用形式Cunningham, Sarah, , Bill Bowler. New Headway Pronunciation: Intermediate Student's Practice Book. Oxford: Oxford University Press, 1999.
MLA(9版)引用形式Cunningham, Sarah, , Bill Bowler. New Headway Pronunciation: Intermediate Student's Practice Book. Oxford University Press, 1999.
警告: この引用は必ずしも正確ではありません.