00498nam a2200157Ia 450000100060000000800390000602000220004508200120006710000310007924500830011026000500019330000180024365300210026165300340028265300240031663880190923n1986    ii  |||gr||||Z||||||465  a978-81-203-0516-8  a001.538  aBach, Maurice J.,eAuthor. 0aThe Design of the Unix Operating SystemcBy Maurice J. BachhTextual Documents  aNew DelhibPHI Learning Private Limitedc1986  apg471:c30cm.  aComputer science  aDesign, Unix Operating System  aG- Computer science