Commodore Personal Computer GW Basic Interpreter User's Guide Spiralbound Manual

Vintage MS-DOS User’s Guide Manual – Microsoft Operating System Reference Book

Microsoft GW-BASIC Interpreter User's Guide and Reference

Microsoft GW-BASIC Interpreter User's Guide and Reference Computer Manual Book

IBM PS/1 Computer User's Reference Guide Manual (original)

Microsoft GW-BASIC Interpreter User's Guide and Reference Computer Manual Book

Microsoft GW-BASIC User's Guide and User's Reference (Paperback book, 1987)

Microsoft MS-DOS User's Guide and User's Reference Ver. 3.3 1987 Computer Book *