TY  - BOOK
AU  - GUPTA, P.K.
AU  - KANTI SWARUP
AU  - MAN MOHAN
TI  - OPERATIONS RESEARCH
SN  - 81 8054 015 4
U1  - 658.403 4 
PY  - 2002///
CY  - New Delhi
PB  - Sultan Chand and Sons, New Delhi 
ER  -