Cuthbertson, Tom. The ABC's of SCO UNIX / Tom Cuthbertson. - New Delhi : BPB Pub., c1991. - xviii, 263 p. : col. ill. 23 cm. Includes index. ISBN: 0895887150 ;8170292956 LCCN: 90071523 Subjects--Topical Terms: UNIX (Computer file) ; XENIX. ; XENIX LC Class. No.: QA76.76.O63 / C92 1991 Dewey Class. No.: 5.74 / CUT 1991