000			00362nam a22001457a 4500
020			_a9788131799345
082			_a658.403 4 MAR-O
100			_aP. Mariappan
245			_aOperation Research : an introduction
260			_aNew Delhi _bPearson _c2018
300			_a378p. _bill _c22cm
650			_aOperation Research
650			_aManagement
942			_2ddc _cBOOKS
999			_c56039 _d56039