APA (7th ed.) Citation

(1987). Microsoft. MS-DOS. User's guide: Version 3.3. Microsoft Corporation.

Chicago Style (17th ed.) Citation

Microsoft. MS-DOS. User's Guide: Version 3.3. Microsoft Corporation, 1987.

MLA (8th ed.) Citation

Microsoft. MS-DOS. User's Guide: Version 3.3. Microsoft Corporation, 1987.

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