Singer, P. (1972). Animal Liberation. Avon Books.
Carruthers, P. (2009). The Animal Problem: A Defence of Danto. Oxford University Press. zooskool inke animal sex sex with dog bestiality www free
Kamm, F. M. (2003). Morality, Mortality, Volume 1: Death and Whom to Save from It. Oxford University Press. Singer, P
Brambell, F. W. R. (1965). Report of the Technical Committee to Inquire into the Conditions under which Livestock are Kept on Frams. London: HMSO. F. M. (2003). Morality