APA (7th ed.) Citation

Riordan, R. (2019). The Heroes Of Olympus. Noura Books.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Heroes Of Olympus. Noura Books, 2019.

MLA (8th ed.) Citation

Riordan, Rick. The Heroes Of Olympus. Noura Books, 2019.

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