00281nam a2200121Ia 4500100002900000250000600029654002100035245003100056260003800087082001400125300000800139546001200147  aSilberschatz/ A/ Galvin   a4  aOperating System  aOperating Systems Concepts  bAddison Wesley PubaReadingc1994  a5.43bSIL  a780  aENGLISH