000 00326nam a2200133Ia 4500
008 231219s9999 xx 000 0 und d
041 _aeng
082 _a658.4034
100 _aTiwari N.K.
245 _aOperations Research[Tiwari]
260 _bPHI Learning Private Ltd. New Delhi
300 _a292
650 _aManagement
999 _c997612
_d997612