APA Style
Riordan, Rick. (2017).
The Hidden Oracle .
London:
Puffin.
Chicago Style
Riordan, Rick.
The Hidden Oracle.
London:
Puffin,
2017.
Text.
MLA Style
Riordan, Rick.
The Hidden Oracle.
London:
Puffin,
2017.
Text.
Turabian Style
Riordan, Rick.
The Hidden Oracle.
London:
Puffin,
2017.
Print.