Hutchinson, Sarah E. DOS 5.0 / Sarah E. Hutchinson, Stacey C. Sawyer and Glen J. Coulthard - Illinois : IRWIN, c1993. - x, 191 p. ; ill. ; 28 cm. - IRWIN series for computer edu. . ISBN: 0256134847 LCCN: Subjects--Topical Terms: Application software. LC Class. No.: QA76.76 / .A65H88 1993 Dewey Class. No.: 005.365 / H975d