APA (7th ed.) Citation
Covey R. Stephen. (1997). The 7 habits of highly effective people. Pocket Books.
Chicago Style (17th ed.) Citation
Covey R. Stephen. The 7 Habits of Highly Effective People. London: Pocket Books, 1997.
MLA (9th ed.) Citation
Covey R. Stephen. The 7 Habits of Highly Effective People. Pocket Books, 1997.
Warning: These citations may not always be 100% accurate.