Midgley, M. (1994). The ethical primate: Humans, freedom, and morality. Routledge.
Citazione stile Chigago Style (17a edizione)Midgley, Mary. The Ethical Primate: Humans, Freedom, and Morality. London: Routledge, 1994.
Citatione MLA (9a ed.)Midgley, Mary. The Ethical Primate: Humans, Freedom, and Morality. Routledge, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.