Riordan, R. (2015). Heroes of Olympus: The lost Hero. Puffin Books.
Lua i Stíl Chicago (17ú heag.)Riordan, Rick. Heroes of Olympus: The Lost Hero. UK: Puffin Books, 2015.
Lua MLA (9ú heag.)Riordan, Rick. Heroes of Olympus: The Lost Hero. Puffin Books, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.