TY  - BOOK
AU  - Gupta, Prem Kumar
AU  - Hira, D. S.
TI  - Operations research
SN  - 81-219-0218-9
U1  - X8(A):8:(B) M3G,N2;1 
PY  - 2000///
CY  - New Delhi
PB  - S. Chand
KW  - Operations research
N1  - Includes Appendix, Bibliography and Index
ER  -