Dyfyniad APA

Passens, B., & Scholl, I. (1991). Wordperfect: Version 6.0. Prisma computer course.

Dyfyniad Arddull Chicago

Passens, Bernd, and Ingrid Scholl. Wordperfect: Version 6.0. London: Prisma computer course, 1991.

Dyfyniad MLA

Passens, Bernd, and Ingrid Scholl. Wordperfect: Version 6.0. Prisma computer course, 1991.

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