Gaya APA
The World Book Encyclopedia : B Volume 2. (1980).
chicago:
World book.
Gaya Chicago
The World Book Encyclopedia : B Volume 2.
Volume 2.
chicago:
World book,
1980.
Buku.
Gaya MLA
The World Book Encyclopedia : B Volume 2.
Volume 2.
chicago:
World book,
1980.
Buku.
Gaya Turabian
The World Book Encyclopedia : B Volume 2.
chicago:
World book,
1980.
Buku.