00302nam a2200109Ia 4500008004100000100002000041245004400061245004400105250000800149260002700157300000800184190311s9999    xx            000 0 und d  aMaurice J. Bach 4aThe Design of the Unix Operating System 4aThe Design of the Unix Operating System  a1st  BPHI Learning Pvt. Ltd.  a471