TY  - GEN
AU  - Drucker , Peter F.
TI  - Management challenges for the 21st century
SN  - 0887309984
U1  - 658 
PY  - 1999///
CY  - New York
PB  - Harper Business
KW  - TWENTY-FIRST CENTURY FORECASTS
KW  - MANAGEMENT
KW  - MANAGEMENT CHALLENGES
ER  -