TY  - BOOK
AU  - Koontz Harold
AU  -  O'Donnell Cyril
TI  - Essentials of management
T2  - (McGraw- Hill series in management)
U1  - X:8, L8 
PY  - 1978///
CY  - New York
PB  - McGraw- Hill U S A     
KW  - Management
ER  -