Cita APA (7th ed.)

Covey, S. R. (2006). The 8th habit: From effectiveness to greatness (Miniature ed.). Running Press.

Cita Chicago (17th ed.)

Covey, Stephen R. The 8th Habit: From Effectiveness to Greatness. Miniature ed. Philadelphia, PA: Running Press, 2006.

Cita MLA (8th ed.)

Covey, Stephen R. The 8th Habit: From Effectiveness to Greatness. Miniature ed. Running Press, 2006.

Atenció: Aquestes cites poden no estar 100% correctes.