Osborne, Christina. Leadership / Christina Osborne. - 1st American ed. - London ; New York, N.Y. : DK Pub., c2008. - 72 p. : col. ill. ; 18 cm. - Essential managers . Includes index. ISBN: 0756637058 (pbk.) 9781405331562 (pbk.) Subjects--Topical Terms: LeadershipManagement