Gaya APA
Koontz, D.
(2010).
Relentless: Tak Kenal Ampun
.
Jakarta:
Ufuk Pblishing House.
Gaya MLA
Koontz, Dean.
"Relentless: Tak Kenal Ampun".
Jakarta:
Ufuk Pblishing House,
2010.
Text.