APA (7th ed.) Citation

Masters, G., & King, R. A. (1991). The DOS 5 user's handbook. Tech Publications.

Chicago Style (17th ed.) Citation

Masters, Gary, and Richard Allen King. The DOS 5 User's Handbook. Singapore: Tech Publications, 1991.

MLA (9th ed.) Citation

Masters, Gary, and Richard Allen King. The DOS 5 User's Handbook. Tech Publications, 1991.