APA (7th ed.) Citation

Riordan, R. (2014). The blood of Olympus. Penguin Group.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Blood of Olympus. UK: Penguin Group, 2014.

MLA (8th ed.) Citation

Riordan, Rick. The Blood of Olympus. Penguin Group, 2014.