Covey, S. R. (1991). Principle-centered leadership. Simon & Schuster.
Chicago Style (17th ed.) CitationCovey, Stephen R. Principle-centered Leadership. New York [etc.]: Simon & Schuster, 1991.
MLA (9th ed.) CitationCovey, Stephen R. Principle-centered Leadership. Simon & Schuster, 1991.
Warning: These citations may not always be 100% accurate.