Gaya APA
The World Book Encyclopedia B Volume 2. (2007).
USA:
Wolrd Book, Inc.
Gaya Chicago
The World Book Encyclopedia B Volume 2.
.
USA:
Wolrd Book, Inc,
2007.
Teks.
Gaya MLA
The World Book Encyclopedia B Volume 2.
.
USA:
Wolrd Book, Inc,
2007.
Teks.
Gaya Turabian
The World Book Encyclopedia B Volume 2.
USA:
Wolrd Book, Inc,
2007.
Teks.