APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Covey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. Revised edition.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Covey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. Revised edition.