Pugh, Kenneth. UNIX for the MS-DOS user / by Kenneth Pugh. - Englewood Cliffs, N.J. : PTR Prentice-Hall, 1994. - x, 230 p. ISBN: 0131460773 Subjects--Uniform Titles: UNIX (Computer file). Subjects--Topical Terms: Technology--Computers and computer technology.UNIX (Computer operating system).