Covey, S. R. (2000). Living the 7 habits: The courage to change (1st Fireside edition.). Simon & Schuster.
Citazione stile Chigago Style (17a edizione)Covey, Stephen R. Living the 7 Habits: The Courage to Change. 1st Fireside edition. New York: Simon & Schuster, 2000.
Citatione MLA (9a ed.)Covey, Stephen R. Living the 7 Habits: The Courage to Change. 1st Fireside edition. Simon & Schuster, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.