Kochan, Stephen G. Exploring the Unix system / Stephen G Kochan, Patrick H. Wood. - New Delhi : C B S Publishers and Distributors , 1987. - 371p : ill.,tables,figs ; 24cm . NULL ISBN: Rs.125.00 (P) Subjects--Index Terms: OPERATING SYSTEMS (COMPUTERS)-UNIX Dewey Class. No.: 005.432U / KOC/E