000 00269nam a2200109Ia 4500
008 230321s9999 xx 000 0 und d
082 _bGUP
100 _aGupta, S.P
245 0 _aQuantitative Techniques & Operations Research
260 _bSultan Chand
_c2013
942 _cBD
999 _c6367
_d6367