000 00255nam a2200097Ia 4500
008 190129s9999 xx 000 0 und d
100 _aNatarajan (A. M.) & Others
245 0 _aOperations Research
260 _bTATA MC GRAW HILL
_c2011
_aNew Delhi
942 _cBK
999 _c8212
_d8212