Singer, P., & Singer, R. (2005). The moral of the story: An anthology of ethics through literature. Blackwell Pub..
Lua i Stíl Chicago (17ú heag.)Singer, Peter, agus Renata Singer. The Moral of the Story: An Anthology of Ethics Through Literature. Malden, MA ; Oxford: Blackwell Pub., 2005.
Lua MLA (8ú heag.)Singer, Peter, agus Renata Singer. The Moral of the Story: An Anthology of Ethics Through Literature. Blackwell Pub., 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.