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