Gaya APA
Riordan, Rick. (2009).
Percy Jackson & The last Olympian .
London:
Penguin Group.
Gaya Chicago
Riordan, Rick.
Percy Jackson & The last Olympian.
London:
Penguin Group,
2009.
Text.
Gaya MLA
Riordan, Rick.
Percy Jackson & The last Olympian.
London:
Penguin Group,
2009.
Text.
Gaya Turabian
Riordan, Rick.
Percy Jackson & The last Olympian.
London:
Penguin Group,
2009.
Print.