000 00333nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aD.S.Hira
245 0 _aOperations Research
250 _a2nd RP
260 _aNew Delhi
260 _bS.Chand & Company Ltd.
260 _c1986
650 _aOperations Research
942 _cBK
999 _c12163
_d12163