Cita APA (7th ed.)

(1992). WordPerfect 5.1 for administrative and office support / Kathleen M. Stewart.

Cita Chicago (17th ed.)

WordPerfect 5.1 for Administrative and Office Support / Kathleen M. Stewart. 1992.

Cita MLA (9th ed.)

WordPerfect 5.1 for Administrative and Office Support / Kathleen M. Stewart. 1992.

Atenció: Aquestes cites poden no estar 100% correctes.