Gaya APA
JOSEPH, L, E.
(2009).
Kiamat 2012: Investigasi Akhir Zaman
(
1st)
.
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
JOSEPH, Lawrence, E..
"Kiamat 2012: Investigasi Akhir Zaman".
1st
Jakarta:
Gramedia Pustaka Utama,
2009.
Printed.