Regan, T. (2008). Do animals have a right to life? Revista brasileira de direito animal = Brazilian animal rights review Vol. 3, n. 4 (jan./dez. 2008), p. 9-28.
Lua i Stíl Chicago (17ú heag.)Regan, Tom. Do Animals Have a Right to Life? Revista brasileira de direito animal = Brazilian animal rights review Vol. 3, n. 4 (jan./dez. 2008), p. 9-28, 2008.
Lua MLA (9ú heag.)Regan, Tom. Do Animals Have a Right to Life? Revista brasileira de direito animal = Brazilian animal rights review Vol. 3, n. 4 (jan./dez. 2008), p. 9-28, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.