Bach, Maurice J. The design of the UNIX operating system / Maurice J. Bach. - New Delhi : Prentice-Hall of India, c1986 [Reprinted 2002]. - xiv, 471 pages : illustrations ; 24 cm. Includes Bibliography and index. ISBN: 8120305167 Subjects--Topical Terms: UNIX (Computer file). Dewey Class. No.: 005.43 BAC