Covey, S. R. (2006). The 8th habit: From effectiveness to greatness (Miniature ed.). Running Press.
Chicago (17e ed.) BronvermeldingCovey, Stephen R. The 8th Habit: From Effectiveness to Greatness. Miniature ed. Philadelphia, PA: Running Press, 2006.
MLA (8e ed.) BronvermeldingCovey, Stephen R. The 8th Habit: From Effectiveness to Greatness. Miniature ed. Running Press, 2006.
Let op: Deze citaties zijn niet altijd 100% accuraat.