Covey, S. R. (2006). The 8th habit: From effectiveness to greatness (Miniature ed.). Running Press.
Chicagoスタイル(17版)引用形式Covey, Stephen R. The 8th Habit: From Effectiveness to Greatness. Miniature ed. Philadelphia, PA: Running Press, 2006.
MLA(8版)引用形式Covey, Stephen R. The 8th Habit: From Effectiveness to Greatness. Miniature ed. Running Press, 2006.
警告: この引用は必ずしも正確ではありません.