Cunningham, S., & Bowler, B. (1994). Headway: Intermediate Pronunciation. Thanh Hóa: Thanh Hóa.
シカゴスタイル引用形Cunningham, Sarah., , Bill Bowler. Headway: Intermediate Pronunciation. Thanh Hóa: Thanh Hóa, 1994.
MLA引用形式Cunningham, Sarah., , Bill Bowler. Headway: Intermediate Pronunciation. Thanh Hóa: Thanh Hóa, 1994.
警告: この引用は必ずしも正確ではありません.