Gaya APA
The Twelve. (2013).
New York:
Ballantine Books.
Gaya Chicago
The Twelve.
.
New York:
Ballantine Books,
2013.
Buku.
Gaya MLA
The Twelve.
.
New York:
Ballantine Books,
2013.
Buku.
Gaya Turabian
The Twelve.
New York:
Ballantine Books,
2013.
Buku.