Gaya APA
Rollins, J. et al
(2009).
The Doomsday Key 2012 : A novel
(
edisi 1)
.
Depok:
Pustaka Iiman.
Gaya MLA
Rollins, James. et al.
"The Doomsday Key 2012 : A novel".
edisi 1
Depok:
Pustaka Iiman,
2009.
Text.