APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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