Drucker, Peter F. The essential Drucker : selections from the management works of Peter F. Drucker. - 1st Collins Business Essentials pbk. ed. - London Routledge 2011 - xiv, 275 p. ; 21 cm. ISBN: 9780061345012 9780750685061 Subjects--Index Terms: Industrial management Success in business Dewey Class. No.: 658 / DRU