Dyfyniad APA

Microsoft Corporation. (1991). Microsoft MS-DOS: User guide and reference for the MS-DOS operating system version 5.0. U.S.A: Microsoft Corporation.

Dyfyniad Arddull Chicago

Microsoft Corporation. Microsoft MS-DOS: User Guide and Reference for the MS-DOS Operating System Version 5.0. U.S.A: Microsoft Corporation, 1991.

Dyfyniad MLA

Microsoft Corporation. Microsoft MS-DOS: User Guide and Reference for the MS-DOS Operating System Version 5.0. U.S.A: Microsoft Corporation, 1991.

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