Norton, Peter. Peter norton`s guide to Unix / by Peter Norton and Harley Hahn. - New Delhi : BPB Publications , 1996. - xxiv,560p. : ills,fig ; 23cm . NULL ISBN: 8170296633 Rs.180.00 Subjects--Index Terms: OPERATING SYSTEMS (COMPUTERS) Dewey Class. No.: 005.432U / NOR/P