000			00296nam a2200133Ia 4500
008			200615s9999||||xx |||||||||||||| ||und||
082			_a650 _bOPE-P
100			_aPATHAK,HK
245		0	_aOPERATION RESEARCH
250			_a1ST
260			_aNew Delhi _bPEARSON _c2018
300			_a799
942			_cBK
999			_c27843 _d27843