COVEY. (2004). The 7 habits highly effective people: Powerful lessons in personal change (15th Anniversary ed.). Pocket Books.
Chicago Style (17th ed.) CitationCOVEY. The 7 Habits Highly Effective People: Powerful Lessons in Personal Change. 15th Anniversary ed. London: Pocket Books, 2004.
MLA (9th ed.) CitationCOVEY. The 7 Habits Highly Effective People: Powerful Lessons in Personal Change. 15th Anniversary ed. Pocket Books, 2004.
Warning: These citations may not always be 100% accurate.