APA引用形式

Thorpe,Edgar, & Thorpe,Showick. (2003). Objective english. Pearson Education.

シカゴスタイル引用形

Thorpe,Edgar, , Thorpe,Showick. Objective English. New Delhi: Pearson Education, 2003.

MLA引用形式

Thorpe,Edgar, , Thorpe,Showick. Objective English. Pearson Education, 2003.

警告: この引用は必ずしも正確ではありません.