Citazione Stile APA (7a Edizione)

Krumm, R. (1990). Teach yourself -- Wordperfect 5.1 for desktop publishing. Global.

Citazione stile Chigago Style (17a edizione)

Krumm, Rob. Teach Yourself -- Wordperfect 5.1 for Desktop Publishing. Manila: Global, 1990.

Citatione MLA (9a ed.)

Krumm, Rob. Teach Yourself -- Wordperfect 5.1 for Desktop Publishing. Global, 1990.