Dyfyniad APA

(1993). Wordperfect for windows. Prisma computer course.

Dyfyniad Arddull Chicago

Wordperfect for Windows. London: Prisma computer course, 1993.

Dyfyniad MLA

Wordperfect for Windows. Prisma computer course, 1993.

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