APA (7th ed.) Citation

Riordan , R. (2019). Percy Jackson and the Singer of Apollo. Puffin Books.

Chicago Style (17th ed.) Citation

Riordan , Rick. Percy Jackson and the Singer of Apollo. England: Puffin Books, 2019.

MLA (9th ed.) Citation

Riordan , Rick. Percy Jackson and the Singer of Apollo. Puffin Books, 2019.

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