APA (7. basım) Alıntı
Covey, S. R. The Seven Habits of Highly Effective People: Restoring the Character Ethic. Fireside.
Chicago Style (17. basım) Atıf
Covey, Stephen R. The Seven Habits of Highly Effective People: Restoring the Character Ethic. Nueva York, EUA: Fireside.
MLA (9th ed.) Atıf
Covey, Stephen R. The Seven Habits of Highly Effective People: Restoring the Character Ethic. Fireside.
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