Gaya APA
Microsoft Windows 3.1: User Guide. (1991).
Taiwan:
ROC.
Gaya Chicago
Microsoft Windows 3.1: User Guide.
.
Taiwan:
ROC,
1991.
BUKU.
Gaya MLA
Microsoft Windows 3.1: User Guide.
.
Taiwan:
ROC,
1991.
BUKU.
Gaya Turabian
Microsoft Windows 3.1: User Guide.
Taiwan:
ROC,
1991.
BUKU.