Gaya APA
The World Book Encyclopedia : H Volume 9. (2006).
chicago:
World book.
Gaya Chicago
The World Book Encyclopedia : H Volume 9.
Volume 9.
chicago:
World book,
2006.
Buku.
Gaya MLA
The World Book Encyclopedia : H Volume 9.
Volume 9.
chicago:
World book,
2006.
Buku.
Gaya Turabian
The World Book Encyclopedia : H Volume 9.
chicago:
World book,
2006.
Buku.