Gaya APA
Word Perfect Corporation. (1993).
:
Word Perfect Corporation.
Gaya Chicago
Word Perfect Corporation.
.
:
Word Perfect Corporation,
1993.
Textbook.
Gaya MLA
Word Perfect Corporation.
.
:
Word Perfect Corporation,
1993.
Textbook.
Gaya Turabian
Word Perfect Corporation.
:
Word Perfect Corporation,
1993.
Textbook.