Cita APA (7th ed.)

Microsoft Corporation. (1990). Microsoft Windows: User's guide for the Windows graphical environment : version 3.0 for the MS-DOS or PC-DOS operating system (Version 3.1.). Microsoft Corporation.

Cita Chicago (17th ed.)

Microsoft Corporation. Microsoft Windows: User's Guide for the Windows Graphical Environment : Version 3.0 for the MS-DOS or PC-DOS Operating System. Version 3.1. [Redmond, Wash.]: Microsoft Corporation, 1990.

Cita MLA (9th ed.)

Microsoft Corporation. Microsoft Windows: User's Guide for the Windows Graphical Environment : Version 3.0 for the MS-DOS or PC-DOS Operating System. Version 3.1. Microsoft Corporation, 1990.