Covey, S. R. (2004). The 7 habits of highly effective people: Restoring the character ethic (15th anniversary ed.). Franklin Covey Co. ; Distributed by Simon & Schuster Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCovey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. 15th anniversary ed. [Salt Lake City] : [New York]: Franklin Covey Co. ; Distributed by Simon & Schuster Audio, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCovey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. 15th anniversary ed. Franklin Covey Co. ; Distributed by Simon & Schuster Audio, 2004.
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