APA (7th ed.) Zitazioa
Preece, R. (2008). Sins of the flesh: A history of ethical vegetarian thought. UBC Press.
Chicago Style (17th ed.) Zitazioa
Preece, Rod. Sins of the Flesh: A History of Ethical Vegetarian Thought. Vancouver: UBC Press, 2008.
MLA (9th ed.) Zitazioa
Preece, Rod. Sins of the Flesh: A History of Ethical Vegetarian Thought. UBC Press, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.