APA (7th ed.) Citation

Davis, W. S. (1989). WordPerfect 5.0: Computing fundamentals. Addison-Wesley Pub. Co.

Chicago Style (17th ed.) Citation

Davis, William S. WordPerfect 5.0: Computing Fundamentals. Reading, Mass: Addison-Wesley Pub. Co, 1989.

MLA (9th ed.) Citation

Davis, William S. WordPerfect 5.0: Computing Fundamentals. Addison-Wesley Pub. Co, 1989.

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