COVEY STEPHEN R. (2000). PORTABLE 7 HABITS CHOICE. MAGNA PUBLISHING CO LTS.
芝加哥风格引文COVEY STEPHEN R. PORTABLE 7 HABITS CHOICE. MUMBAI: MAGNA PUBLISHING CO LTS, 2000.
MLA引文COVEY STEPHEN R. PORTABLE 7 HABITS CHOICE. MAGNA PUBLISHING CO LTS, 2000.
警告：这些引文格式不一定是100％准确.