↑ Dutton, Donald G. (2007). The Psychology of Genocide, Massacres, and Extreme Violence: Why "normal" People Come to Commit Atrocities. Greenwood Publishing Group. p. 14. ISBN9780275990008.
↑ Friedman, Mark (2013). Genocide (Hot Topics). Raintree. p. 58. ISBN9781406235081.
↑ Scullard, Howard Hayes: A History of the Roman World, 753 to 146 BC. Routledge, 2002, page 316. ISBN0-415-30504-7
↑ French, Peter (2010). War and Moral Dissonance. Cambridge, UK: Cambridge University Press. pp. 302–303. ISBN0521169038.
