00273nam a2200109Ia 4500100002900000654001400029245003900043260004300082082001800125300000800143546001200151  aAckoff/R.L/ Sasieni/M.W   aoperation  aFundamentals of Operation Research  bWILEY EASTERN LIMITEDaNew Delhic1984  a658.4034bACK  a455  aENGLISH