Duff, A. (c1993). Punishment. The international research library of philosophy.
Cita Chicago Style (17a ed.)Duff, Antony. "Punishment." The International Research Library of Philosophy c1993.
Cita MLA (9a ed.)Duff, Antony. "Punishment." The International Research Library of Philosophy, c1993.
Precaución: Estas citas no son 100% exactas.