APA (7th ed.) Citation

(1991). Word Perfect for Windows: Reference for computer running windows 3.0. Word Perfect Corporation.

Chicago Style (17th ed.) Citation

Word Perfect for Windows: Reference for Computer Running Windows 3.0. Word Perfect Corporation, 1991.

MLA (8th ed.) Citation

Word Perfect for Windows: Reference for Computer Running Windows 3.0. Word Perfect Corporation, 1991.

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