Covey, Stephen R The seven habits of highly effective people : restoring the character ethic / Stephen R Covey - London : Simon & Schuster, c1989. - 358p. : ill. ; 23cm. Includes index. ISBN: 0671711172 Subjects--Topical Terms: Success--Psychological aspectsCharacterPersonalityLeadership Dewey Class. No.: 158 / COV