Covey, Stephen R., The seven habits of highly effective people : Powerful lessons in personel change / by Stephen R. Covey - New York : Simon & Schuster, 1989 - 358 pages : illustrations ; 21 cm Includes Index ISBN: 0671708635 (paperback) 9780671708634 (paperback) Subjects--Topical Terms: Success--Psychological aspectsCharacter LC Class. No.: BF637.S8 C68