APA (7th ed.) Citation

Gookin, D. (1991). DOS 5 user's guide: A comprehensive guide for every PC user. M&T Books.

Chicago Style (17th ed.) Citation

Gookin, Dan. DOS 5 User's Guide: A Comprehensive Guide for Every PC User. Redwood City, CA: M&T Books, 1991.

MLA (8th ed.) Citation

Gookin, Dan. DOS 5 User's Guide: A Comprehensive Guide for Every PC User. M&T Books, 1991.