Das, Sumitabha Unix System V.4 Concepts and applications Sumitabha Das. - New Delhi Tata McGrawHill pub. c1993. - xvi, 496p.; 24 cm. ISBN: 007460483X. Subjects--Topical Terms: UNIX System V (Computer file) Operating systems (Computers). Dewey Class. No.: 005.43 / D18U