000 00300nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a510
100 _aMandhar Mahajan
245 0 _aOperations Research
250 _a2
260 _bDhanpat Rai Publications Pvt Ltd, New Delhi
_c2009
942 _cBK
999 _c25861
_d25861