TY  - BOOK
AU  - Swarup, Kanti Gupta, P.K. etal 
TI  - Operations research 
SN  - 81-7014-816-2 
U1  - 003 SWA  
PY  - 2001///
CY  - Sulthan chand and sons 
PB  - New Delhi 
KW  - OPERATION RESEARCH
ER  -