Allen, Louis A. Professional management: new concepts and proven practices / by Louis A. Allen. - T M H ed. - New Delhi : McGraw-Hill 1975 - xi, 236 p.; 23 cm. Includes bibliographical references. ISBN: 0070011109 LCCN: 73010109 Subjects--Topical Terms: Management. Dewey Class. No.: 658.4 / ALP 1973