000 00332nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aPremkumar Gupta
245 0 _aOperations Research
250 _a2nd RP
260 _aNew Delhi
260 _bS.Chand & Sons
260 _c2009
650 _aOperations Research
942 _cBK
999 _c23050
_d23050