APA (7. basım) Alıntı

Covey, S. (1992). The seven habits of highly effective people. Simon & Schuster.

Chicago Style (17. basım) Atıf

Covey, Stephen. The Seven Habits of Highly Effective People. London: Simon & Schuster, 1992.

MLA (9th ed.) Atıf

Covey, Stephen. The Seven Habits of Highly Effective People. Simon & Schuster, 1992.