Norton, Peter Peter Norton's complete guide to DOS 6.23 - Techmedia Techmedia 1997 - 1150 p ISBN: 8187105224 Subjects--Topical Terms: Computer Engineering LC Class. No.: 005.446 NOR 1997 Dewey Class. No.: 005.446 NOR 1997 National Library of Medicine Call No.: 005.446 NOR 1997