APA(7版)引用形式
Covey R. Stephen. (1997). The 7 habits of highly effective people. Pocket Books.
Chicagoスタイル(17版)引用形式
Covey R. Stephen. The 7 Habits of Highly Effective People. London: Pocket Books, 1997.
MLA(9版)引用形式
Covey R. Stephen. The 7 Habits of Highly Effective People. Pocket Books, 1997.
警告: この引用は必ずしも正確ではありません.