APA (7th ed.) Citation

Junior, R. M. (1991). Microsoft MS-DOS version 5.0: User's guide and reference for the MS-DOS operating system. Microsoft, 1991.

Chicago Style (17th ed.) Citation

Junior, Raymond McLeod. Microsoft MS-DOS Version 5.0: User's Guide and Reference for the MS-DOS Operating System. Microsoft, 1991, 1991.

MLA (8th ed.) Citation

Junior, Raymond McLeod. Microsoft MS-DOS Version 5.0: User's Guide and Reference for the MS-DOS Operating System. Microsoft, 1991, 1991.