Bach, Maurice J. The design of the UNIX operating system / Maurice J. Bach. - New Delhi : Prentice-Hall, c1986. - xiv, 471 p. : ill. ; 25 cm. - Prentice-Hall software series . Includes index. Bibliography: p. 454-457. ISBN: 0132017997 8120305167 LCCN: 86186519 Subjects--Uniform Titles: UNIX (Computer file) LC Class. No.: QA76.76.O63 / B33 1986 Dewey Class. No.: 005.432 / B118d 1986