Covey. (1989). The 7 habits hifgly effective people: Powerful lessons in personal change. Simon & Schuster.
Chicago Style (17th ed.) CitationCovey. The 7 Habits Hifgly Effective People: Powerful Lessons in Personal Change. New York: Simon & Schuster, 1989.
MLA (8th ed.) CitationCovey. The 7 Habits Hifgly Effective People: Powerful Lessons in Personal Change. Simon & Schuster, 1989.
Warning: These citations may not always be 100% accurate.