000 00267nam a2200121Ia 4500
082 _a658.4034 WAG/P
100 _aHarvey M Wagner
245 _aPrinciples of Operations Research
250 _a2
260 _c1989
_bPHI
_aNew Delhi
300 _axii+1038
942 _cBK
999 _c17511
_d17511