Cita APA (7a ed.)

Smith, D. L. (2011). Less than human: Why we demean, enslave, and exterminate others. St. Martin's Press.

Cita Chicago Style (17a ed.)

Smith, David Livingstone. Less than Human: Why We Demean, Enslave, and Exterminate Others. New York: St. Martin's Press, 2011.

Cita MLA (9a ed.)

Smith, David Livingstone. Less than Human: Why We Demean, Enslave, and Exterminate Others. St. Martin's Press, 2011.