Gaya APA
The World Book Encyclopedia : M Volume 13. (1980).
chicago:
World book.
Gaya Chicago
The World Book Encyclopedia : M Volume 13.
Volume 13.
chicago:
World book,
1980.
Buku.
Gaya MLA
The World Book Encyclopedia : M Volume 13.
Volume 13.
chicago:
World book,
1980.
Buku.
Gaya Turabian
The World Book Encyclopedia : M Volume 13.
chicago:
World book,
1980.
Buku.