000 00334nam a2200157Ia 4500
008 230913s9999 xx 000 0 und d
082 _a kal
100 _aKalavathy, S
245 0 _aOperation Research
250 _aIII
260 _aNEW DELHI
260 _bVIKAS
260 _c2010
300 _a551
650 _aMathematics
999 _c140528
_d140528