TY  - BOOK
AU  - Gupta, P.K.
AU  - Mohan, Man.
TI  - Problems in operations research: methods and solutions
SN  - 9788180545641
U1  - 658.409 GUP 
PY  - 2009///
CY  - New Delhi
PB  - Sultan Chand & Sons.
KW  - Research
ER  -