APA (7th ed.) Citation

Alfieri, V. (1988). The best book of WordPerfect 5.0. Hayden Books.

Chicago Style (17th ed.) Citation

Alfieri, Vincent. The Best Book of WordPerfect 5.0. Carmel, IN: Hayden Books, 1988.

MLA (9th ed.) Citation

Alfieri, Vincent. The Best Book of WordPerfect 5.0. Hayden Books, 1988.

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