Covey, S. R. (2000). Living the 7 habits: The courage to change (1st Fireside edition.). Simon & Schuster.
Chicago-viite (17. p.)Covey, Stephen R. Living the 7 Habits: The Courage to Change. 1st Fireside edition. New York: Simon & Schuster, 2000.
MLA-viite (9. p.)Covey, Stephen R. Living the 7 Habits: The Courage to Change. 1st Fireside edition. Simon & Schuster, 2000.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.