Tyrrell, G. (1970). On beauty. Blackwell.
Lua i Stíl Chicago (17ú heag.)Tyrrell, George. On Beauty. Oxford: Blackwell, 1970.
Lua MLA (8ú heag.)Tyrrell, George. On Beauty. Blackwell, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.