TY  - GEN
AU  - Peter F. Drucker
TI  - Management Challenges for the 21st Century
SN  - 978-0-88730-999-1
U1  - 658.406 23rd
PY  - 1909///
CY  - New York
PB  - Harper Business
KW  - Management
KW  - Forecasting
N1  - It includes index
ER  -