References
^ Smith (2014). Less Than Human : Why We Demean, Enslave, and Exterminate Others, St. Martin's Press. BiggerBooks. ISBN 9780312532727 (revised Dec 2023)^ (2013). Less Than Human : Why We Demean, Enslave, and Exterminate Others ECampus. ISBN 9780312532727 (revised Sep 2016)
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