000 00318nam a2200133Ia 4500
008 230321s9999 xx 000 0 und d
082 _a512.944
_bGUP
100 _aGupta, S.P.
245 0 _aQuantitative Tecnology & Operation Research
250 _a1st
260 _bSultan Chand
_c2007
300 _a972
942 _cBB
999 _c5917
_d5917