Dyfyniad APA

Norton, P. (1987). Peter Norton's DOS guide (Rev. & expanded.). Brady : Distributed by Prentice Hall Trade.

Dyfyniad Arddull Chicago

Norton, Peter. Peter Norton's DOS Guide. Rev. & expanded. New York, N.Y.: Brady : Distributed by Prentice Hall Trade, 1987.

Dyfyniad MLA

Norton, Peter. Peter Norton's DOS Guide. Rev. & expanded. Brady : Distributed by Prentice Hall Trade, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.