Cita APA (7th ed.)

(1993). User's guide: Microsoft windows operating system version 3.11. Microsoft Corp.

Cita Chicago (17th ed.)

User's Guide: Microsoft Windows Operating System Version 3.11. [California]: Microsoft Corp, 1993.

Cita MLA (9th ed.)

User's Guide: Microsoft Windows Operating System Version 3.11. Microsoft Corp, 1993.