000 00357nam a2200145Ia 4500
008 221231s9999 xx 000 0 und d
100 _aPrem Kumar Gupta and Hira D S
_92527
245 0 _aOperation Research
250 _a1 st
260 _bS Chand and Company LTD
260 _c1997
300 _a1055
650 _aComputer Science
_92528
942 _cBE_BK
999 _c2567
_d2567