00351nam a2200145Ia 4500008004100000020001800041041000800059082001600067100001600083245004300099260002300142300000800165365001600173700001600189230714s9999    xx            000 0 und d  a9790000000000  aeng  a005.43bHAR  aHarris J.A.  aSchaum's Outlines Of Operating Systems  c2020bMcGgraw-Hill  a234  cRs.b690.00  aHarris J.A.