APA Style
Riordan, Rick. (0).
Percy Jackson: The Demigod Files .
USA:
Puffin Books.
Chicago Style
Riordan, Rick.
Percy Jackson: The Demigod Files.
USA:
Puffin Books,
0.
Book.
MLA Style
Riordan, Rick.
Percy Jackson: The Demigod Files.
USA:
Puffin Books,
0.
Book.
Turabian Style
Riordan, Rick.
Percy Jackson: The Demigod Files.
USA:
Puffin Books,
0.
Book.