Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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