000 00326nam a2200157Ia 4500
100 _aGoel, B. S;Mittal, S. K
080 _a658.4034
080 _bGoe/Mit
526 _dTB
526 _aPG
942 _cBK
245 _aOperations research
260 _aPragati Prakashan
_bIndia
_c1985
300 _axii,800
546 _aE
999 _c54757
_d54757