APA (7th ed.) Citation

Riordan, R. (2012). The demigod diaries.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Demigod Diaries. 2012.

MLA (8th ed.) Citation

Riordan, Rick. The Demigod Diaries. 2012.

Warning: These citations may not always be 100% accurate.