Robinson, D. (1996). Introducing Ethics. Icon Books.
Lua i Stíl Chicago (17ú heag.)Robinson, Dave. Introducing Ethics. Matta: Icon Books, 1996.
Lua MLA (9ú heag.)Robinson, Dave. Introducing Ethics. Icon Books, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.