00466nam a2200157Ia 4500008004100000020001800041082001400059100002100073245004400094250000700138260005000145300002300195500001900218600002100237650005000258240925s9999    xx            000 0 und d  a9789332549579  a005.4 BAC  aBach, Maurice J. 4aThe Design of the Unix Operating System  aNA  aUttar Pradesh:bPearson Education Incc,2015.  a528p.b0fOriginal  aIncludes Index  aComputer Science  aComputer science, information & general works