The managerial mind : science and theory in policy decisions / [by] Charles E. Summer [and] Jeremiah J. O'Connell, with the collaboration of Boris Yavitz, Newman S. Peery, Jr. and Carol Carlisle Summer. O'Connell, Jeremiah J., 1932-2015, author. Summer, Charles Edgar, editor. Management Case studies. HD31 .S763 1973 658.001 SUM Includes bibliographical references. Homewood, Ill., R. D. Irwin, 1973. 1973. 1973 Text xxvii, 876 p. eng