Drucker, Peter F. 1909-2005. Management challenges for the 21st century / Management challenges for the twenty-first century Peter F. Drucker. - 1st ed. - New York : HarperBusiness, c1999. Oxford : Butterworth Heinemann, c1999 - xii, 205 p. ; 24 cm. Includes index. ISBN: 0887309984 075065712X LCCN: 99017087 Subjects--Topical Terms: Management--Forecasting.Twenty-first century--Forecasts. LC Class. No.: HD30.27 / .DRU 1999