APA (7th ed.) Citation

Gookin, D. (1993). DOS for dummies (Second Edition.). IDG Books Worldwide.

Chicago Style (17th ed.) Citation

Gookin, Dan. DOS for Dummies. Second Edition. San Mateo, California: IDG Books Worldwide, 1993.

MLA (9th ed.) Citation

Gookin, Dan. DOS for Dummies. Second Edition. IDG Books Worldwide, 1993.