APA引文

Covey, S. R. (1999). Seven habits of highly effective people (1st.). Pocket books.

Chicago Edition Citation

Covey, Stephen R. Seven Habits of Highly Effective People. 1st. London: Pocket books, 1999.

MLA引文

Covey, Stephen R. Seven Habits of Highly Effective People. 1st. Pocket books, 1999.

警告：這些引文格式不一定是100％准確.