TY - BOOK AU - Drucker, Peter F. TI - Management challenges for the 21st century SN - 9780887309984 U1 - 658 PY - 1999/// CY - New York PB - HarperBusiness KW - Business forecasting. KW - Attitudes Overseas KW - Organisational change KW - Labour productivity KW - Forecasting Managers KW - Management techniques N1 - Includes index ER -