APA (7th ed.) Citation

Salkind. (1991). Wordperfect 5.0/5.1: A self-teaching guide. John Wiley and Sons.

Chicago Style (17th ed.) Citation

Salkind. Wordperfect 5.0/5.1: A Self-teaching Guide. New York: John Wiley and Sons, 1991.

MLA (8th ed.) Citation

Salkind. Wordperfect 5.0/5.1: A Self-teaching Guide. John Wiley and Sons, 1991.