APA (7th ed.) Citation

Microsoft Corporation. (1986). Microsoft MS-DOS: User's guide. Microsoft.

Chicago Style (17th ed.) Citation

Microsoft Corporation. Microsoft MS-DOS: User's Guide. Redmond: Microsoft, 1986.

MLA (9th ed.) Citation

Microsoft Corporation. Microsoft MS-DOS: User's Guide. Microsoft, 1986.

Warning: These citations may not always be 100% accurate.