000 00279nam a22001337a 4500
003 SGT
020 _a9789351611011
082 _a658.5
_bSWA
100 _aSWARUP, KANTI
245 _aOPERATIONS RESEARCH
260 _bSULTAN CHAND
_c2018
300 _a1078
942 _2ddc
_cBK
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999 _c16261
_d16261