In charge of yourself : a competence approach to personal development / Roger Cartwright ... [et al.]. Cartwright, Roger. Supervisors Psychology. Executive ability. Self-management (Psychology) 658.4093 20 INC "NVQ/ SVQ level 3 & 4." Includes bibliographical references (p. [216]) and index. Oxford, UK ; Cambridge, Mass. : Blackwell, 1996. 1996. 1996 Text vi, 221 p. : eng In charge