Drucker, Peter F. 1909-2005 The effective executive / Peter F. Drucker - New York : Collins, c2006 - xxiii, 178 p. ; 21 cm Includes index. ISBN: 0060833459 (pbk.) 9780060833459 (pbk.) Subjects--Topical Terms: Executives--United StatesDecision making Dewey Class. No.: 658.4 / DRU