Covey, S. R. (2013). The 7 Habits of Highly Effective People. Simon & Schuster.
芝加哥风格引文Covey, Stephen R. The 7 Habits of Highly Effective People. UK: Simon & Schuster, 2013.
MLA引文Covey, Stephen R. The 7 Habits of Highly Effective People. Simon & Schuster, 2013.
警告：这些引文格式不一定是100％准确.