TY  - BOOK
AU  - Gupta, S.P. 
AU  - Gupta, P.K. 
TI  - Quantitative techniques and operations research
SN  - 9788180545696
U1  - 658.4034 
PY  - 2009///
CY  - New Delhi 
PB  - Sultan Chand 
KW  - Operations Research
ER  -