Cita APA (7th ed.)

Riordan, R. (2015). Heroes of Olympus: The son of neptune. Puffin Books.

Cita Chicago (17th ed.)

Riordan, Rick. Heroes of Olympus: The Son of Neptune. UK: Puffin Books, 2015.

Cita MLA (9th ed.)

Riordan, Rick. Heroes of Olympus: The Son of Neptune. Puffin Books, 2015.