Preece, R. (2008). Sins of the flesh: A history of ethical vegetarian thought. UBC Press.
Lua i Stíl Chicago (17ú heag.)Preece, Rod. Sins of the Flesh: A History of Ethical Vegetarian Thought. Vancouver: UBC Press, 2008.
Lua MLA (9ú heag.)Preece, Rod. Sins of the Flesh: A History of Ethical Vegetarian Thought. UBC Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.