Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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