APA (7th ed.) Citation

(1987). Microsoft MS-DOS condessed Edition 4.01: User's Guide. Phoenix Technologies.

Chicago Style (17th ed.) Citation

Microsoft MS-DOS Condessed Edition 4.01: User's Guide. Phoenix Technologies, 1987.

MLA (8th ed.) Citation

Microsoft MS-DOS Condessed Edition 4.01: User's Guide. Phoenix Technologies, 1987.

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