Cita APA (7th ed.)

Abbott, L. (1991). WordPerfect: Module II version 5.1. ComputerPREP.

Cita Chicago (17th ed.)

Abbott, Lyn. WordPerfect: Module II Version 5.1. Phoenix, Ariz: ComputerPREP, 1991.

Cita MLA (9th ed.)

Abbott, Lyn. WordPerfect: Module II Version 5.1. ComputerPREP, 1991.