Covey, Stephen R. The 7 habits of highly effective people : powerful lessons in personal change / Stephen R. Covey. - New York : Simon & Schuster, 2013. - xxx, 391 pages : illustrations ; 22 cm. Includes index. ISBN: 9781451639612 Subjects--Topical Terms: Success -- Psychological aspects.Character. LC Class. No.: BF 637.S8 C68 2013