APA Style
Microsoft Word : Word Processing Program for the Macintosh Version 5.0. (1991).
Washington:
Microsoft Corporation.
Chicago Style
Microsoft Word : Word Processing Program for the Macintosh Version 5.0.
.
Washington:
Microsoft Corporation,
1991.
Text.
MLA Style
Microsoft Word : Word Processing Program for the Macintosh Version 5.0.
.
Washington:
Microsoft Corporation,
1991.
Text.
Turabian Style
Microsoft Word : Word Processing Program for the Macintosh Version 5.0.
Washington:
Microsoft Corporation,
1991.
Print.