Riordan,Rick. (2012). The Son of Neptune Heroes Olympus 2. Puffin.
Lua i Stíl Chicago (17ú heag.)Riordan,Rick. The Son of Neptune Heroes Olympus 2. London: Puffin, 2012.
Lua MLA (8ú heag.)Riordan,Rick. The Son of Neptune Heroes Olympus 2. Puffin, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.