TY  - BOOK
AU  - GUPTA, Prem Kumar
AU  - HIRA, D.S
TI  - Operations Research
SN  - 8121902819
U1  - 003 GUP 22
PY  - 2008///
CY  - New Delhi
PB  - S. Chand & Company 
KW  - Research
ER  -