Gookin, D. (1991). DOS 5 user's guide: A comprehensive guide for every PC user. M&T Books.
Dyfyniad Arddull ChicagoGookin, Dan. DOS 5 User's Guide: A Comprehensive Guide for Every PC User. Redwood City, CA: M&T Books, 1991.
Dyfyniad MLAGookin, Dan. DOS 5 User's Guide: A Comprehensive Guide for Every PC User. M&T Books, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.