APA (7th ed.) Citation

Thomas, Robert M. (1991). DOS 5 instant reference. Tech Publications.

Chicago Style (17th ed.) Citation

Thomas, Robert M. DOS 5 Instant Reference. Singapore: Tech Publications, 1991.

MLA (9th ed.) Citation

Thomas, Robert M. DOS 5 Instant Reference. Tech Publications, 1991.

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