Eco, U. (2004). On beauty. Secker & Warburg.
Lua i Stíl Chicago (17ú heag.)Eco, Umberto. On Beauty. London: Secker & Warburg, 2004.
Lua MLA (8ú heag.)Eco, Umberto. On Beauty. Secker & Warburg, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.