000 00251nam a2200109Ia 4500
020 _a9780071333467
082 _a658.4034
100 _aHILLIER, FREDERICK
245 _aINTRODUCTION TO OPERATION RESEARCH
260 _aNEW DELHI
_b SIE
_c2011
942 _cBK
999 _c3515
_d3515