Torpey. The Three Axial Ages. Rutgers University Press.
Lua i Stíl Chicago (17ú heag.)Torpey. The Three Axial Ages. Rutgers University Press.
Lua MLA (9ú heag.)Torpey. The Three Axial Ages. Rutgers University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.