Nygaard, R. L. (1998). Crime, Pain, and Punishment: A Skeptic's View.
Cita Chicago Style (17a ed.)Nygaard, Richard Lowell. Crime, Pain, and Punishment: A Skeptic's View. 1998.
Cita MLA (9a ed.)Nygaard, Richard Lowell. Crime, Pain, and Punishment: A Skeptic's View. 1998.
Precaución: Estas citas no son 100% exactas.