Tricks of the MS-DOS masters - paperback Fahringer|John Angermeyer

Writing MS-DOS Device Drivers Paperback Robert S., Waite Group St

Tricks of the MS-DOS Masters by Dan Shafer, Waite Group Staff

MS-DOS Bible - Paperback, by Waite Mitchell - Acceptable n

Writing MS-DOS Device Drivers Paperback Robert S., Waite Group St

Visual COBOL: A Developer's Guide to Modern COBOL - Paperback - VERY GOOD

MS-DOS Developer’s Guide John Angermeyer And Kevin Jaeger

MS-DOS, Advanced Applications by David A. Lien (1986, 3rd Ed. Paperback)