APA引文

WordPefect Corporation. (1988). Wordperfect for IBM personal computers (version 5.0.). Wordperfect Corporation.

Chicago Style (17th ed.) Citation

WordPefect Corporation. Wordperfect for IBM Personal Computers. version 5.0. Orem, Utah: Wordperfect Corporation, 1988.

MLA引文

WordPefect Corporation. Wordperfect for IBM Personal Computers. version 5.0. Wordperfect Corporation, 1988.

警告：這些引文格式不一定是100％准確.