Cita APA (7a ed.)

O'Leary, T. j., & Gardner, D. C. (1996). WordPerfect 6.1 for Windows: The visual learning guide. Prima Pub., McGraw-Hill.

Cita Chicago Style (17a ed.)

O'Leary, Timothy j., y David C. Gardner. WordPerfect 6.1 for Windows: The Visual Learning Guide. Rocklin, CA : New York: Prima Pub., McGraw-Hill, 1996.

Cita MLA (8a ed.)

O'Leary, Timothy j., y David C. Gardner. WordPerfect 6.1 for Windows: The Visual Learning Guide. Prima Pub., McGraw-Hill, 1996.