APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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