Blackburn, S. (2003). Ethics: A Very Short Introduction (1st.). Oxford.
Lua i Stíl Chicago (17ú heag.)Blackburn, Simon. Ethics: A Very Short Introduction. 1st. Oxford, 2003.
Lua MLA (9ú heag.)Blackburn, Simon. Ethics: A Very Short Introduction. 1st. Oxford, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.