APA (7th ed.) Citation

Riordan, R. (2019). The mark of Athena (New paperback edition.). Disney/Hyperion.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Mark of Athena. New paperback edition. Los Angeles: Disney/Hyperion, 2019.

MLA (8th ed.) Citation

Riordan, Rick. The Mark of Athena. New paperback edition. Disney/Hyperion, 2019.

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