Heyel, Carl, 1908-2000, The encyclopedia of management. - 2d ed. - New York, Van Nostrand Reinhold Co. [1973] - xxvii, 1161 p. illus. 26 cm. ISBN: 0442234058 LCCN: 72011784 LC Class. No.: HD19 .H4 1973 / .H4 1973 Dewey Class. No.: 658/.003