Bach, Maurice J. The design of the UNIX operating system / Maurice J. Bach - New Delhi : Prentice-Hall of India, c1986 - xiv, 471 p. : ill. ; 25 cm. - Prentice-Hall software series . Includes index ISBN: 0876925166 : Rs. 79.00 Subjects--Topical Terms: UNIX (Computer file) Dewey Class. No.: 001.642