(1997). Advanced WordPerfect 7.0 training.
Cita Chicago (17th ed.)Advanced WordPerfect 7.0 Training. 1997.
Cita MLA (9th ed.)Advanced WordPerfect 7.0 Training. 1997.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)