APA引用形式

Crossfield. (1977). How to develop executive skills. Crossfield.

シカゴスタイル引用形

Crossfield. How to Develop Executive Skills. New Delhi: Crossfield, 1977.

MLA引用形式

Crossfield. How to Develop Executive Skills. Crossfield, 1977.

警告: この引用は必ずしも正確ではありません.