Norman, R. (2004). On humanism. Routledge.
Lua i Stíl Chicago (17ú heag.)Norman, Richard. On Humanism. London: Routledge, 2004.
Lua MLA (9ú heag.)Norman, Richard. On Humanism. Routledge, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.