Cita APA (7th ed.)

Todd, G. (1988). Using WordPerfect, series 5 edition. Osborne McGraw-Hill.

Cita Chicago (17th ed.)

Todd, Gail. Using WordPerfect, Series 5 Edition. Berkeley, Calif.: Osborne McGraw-Hill, 1988.

Cita MLA (8th ed.)

Todd, Gail. Using WordPerfect, Series 5 Edition. Osborne McGraw-Hill, 1988.