TY  - BOOK
AU  - Koontz, Harold
AU  - O'Donnell, Cyril
AU  - Weihrich, Heinz
TI  - Essentials of Management
U1  - 658, K93E 
PY  - 1982///
CY  - New Delhi
PB  - Tata McGraw-Hill Publishing Company 
ER  -