APA (7th ed.) Citation

Riordan, R. (2015). The sword of summer. Disney Hyperion.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Sword of Summer. Los Angeles: Disney Hyperion, 2015.

MLA (8th ed.) Citation

Riordan, Rick. The Sword of Summer. Disney Hyperion, 2015.

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