Style de citation APA (7e éd.)

Covey, S. R. (2004). The 7 habits of highly effective people: Restoring the character ethic ([Revised edition].). Free Press.

Style de citation Chicago (17e éd.)

Covey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. [Revised edition]. New York: Free Press, 2004.

Style de citation MLA (9e éd.)

Covey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. [Revised edition]. Free Press, 2004.