Bach, Maurice J. The design of the unix operating system / Maurice J Bach. - New Delhi : Prentice Hall of India , 2003. - xiv,471p. : ills,tables,figs ; 24cm . NULL ISBN: 8120305167 Rs. 195.00 Subjects--Index Terms: OPERATING SYSTEMS (COMPUTERS)-UNIX Dewey Class. No.: 005.432 / BAC/D