Drucker, Peter Ferdinand The Effective Executive : The Definitive Guide To Getting The Right Things Done / Peter Ferdinand Drucker - New York : Harper Business, 2006. - xxiii, 178 pages. ; 20 cm. Includes index ISBN: 9780060833459 (pbk.) Subjects--Topical Terms: Executives --United States.Decision making. LC Class. No.: HD38.25.U6