Παραπομπή APA

Mebius, K. (1994). Word processing with Wordperfect: Be an expert. Prisma computer course.

Παραπομπή Chicago Style

Mebius, Koos. Word Processing with Wordperfect: Be an Expert. London: Prisma computer course, 1994.

Παραπομπή MLA

Mebius, Koos. Word Processing with Wordperfect: Be an Expert. Prisma computer course, 1994.