APA (7th ed.) Zitazioa
Riordan, R. Percy Jackson and the Lightning Thief. Puffin Books.
Chicago Style (17th ed.) Zitazioa
Riordan, Rick. Percy Jackson and the Lightning Thief. Nueva York, EUA: Puffin Books.
MLA (9th ed.) Zitazioa
Riordan, Rick. Percy Jackson and the Lightning Thief. Puffin Books.
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