Topham, Douglas W., 1942- InfoWorld : : a DOS user's guide to UNIX / [electronic resource] / Douglas Topham.. — New York : : Brady,, c1990.. — xiii, 273 p. : : ill. ; 24 cm. + 1 UNIX quick reference (6 p.) Includes index. ISBN: 0132190982 : $27.95 9780132190985 LCCN: 89070869 Nat. Bib. No.: GB91-45689 Subjects--Uniform Titles: UNIX (Computer file) Subjects--Topical Terms: UNIX.MS DOS. Subjects--Index Terms: Operating systems LC Class. No.: QA76.76.O63 / T66 1990 Dewey Class. No.: 005.4/3