TY  - BOOK
AU  - Gupta, Prem Kumar and Hira, D. S.
TI  - Operation Research
SN  - 9788121909686
U1  - 519.92 G P K 
PY  - 2013///
CY  - New Delhi
PB  - Sultan Chand, 
KW  - Mathematics
KW  - Operation research
N1  - Mathematics
ER  -