Drucker, Peter F. 1909-2005. The practice of management [by] Peter F. Drucker. - London, Pan, 1968. - 479 p. 18 cm. ISBN: 0330020315 LCCN: 68134886 LC Class. No.: HD70.U5 .D7 1968 / D7 1968 Dewey Class. No.: 658