Gaya APA
The world book encyclopedia volume 12. (1992).
United State of America:
Wortel Books.
Gaya Chicago
The world book encyclopedia volume 12.
.
United State of America:
Wortel Books,
1992.
Text.
Gaya MLA
The world book encyclopedia volume 12.
.
United State of America:
Wortel Books,
1992.
Text.
Gaya Turabian
The world book encyclopedia volume 12.
United State of America:
Wortel Books,
1992.
Print.