TY  - BOOK
AU  - Gupta  Prem Kumar
TI  - Operation Research 
SN  - 9788121902816
U1  - 654.403/GUP/ 
PY  - 1998///
PB  - S. Chand & Company Pvt.Ltd., New Delhi
N1  - Doneted by Mr. Tarun Shrivastava, Nagpur
ER  -