00265nam a2200121Ia 4500100002600000250000600026654002100032245003000053260002600083082001400109300000800123546001200131  aTanenbaum /Andrew S.   a2  aoperating system  aModern operationg systems  bPrentice   Hallc2003  a5.43bTAN  a951  aENGLISH