Bibliografi:.
1. Peter Singer, "Alle dyr er lige," Årlige Afvikling af Center for Philosophical Exchange 1, No.5 (1974): 103-11, State University of New York College i Brockport, 1974. 2. Institutional Animal Care og brug Udvalg (IACUC), https://www.iacuc.org/aboutus.htm 3. Geoffrey Becker, "human behandling af dyr: Oversigt og Issues", Congressional Research Service Rapport RS21978 18. november 2005 (Opdateret 14 August 2006) 4.. Institutional Animal Care og brug Udvalg (IACUC), https://www.nal.usda.gov/awic/pubs/noawicpubs/educ.htm5. Tom Regan, "The Case for Animal Rights", I Defense of Animals , red. Peter Singer (Oxford: Basil Blackwell, 1985), 13-26 .
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