APA (7th ed.) Citation

Using Wordperfect for Windows 6.0 [. M-USA Business System.

Chicago Style (17th ed.) Citation

Using Wordperfect for Windows 6.0 [. Dallas, TX: M-USA Business System.

MLA (9th ed.) Citation

Using Wordperfect for Windows 6.0 [. M-USA Business System.

Warning: These citations may not always be 100% accurate.