Fischer, John Martin (1983). «Practical Ethics by Peter Singer». The Philosophical Review. 92 (2): 264–266. JSTOR2184936. doi:10.2307/2184936
Engel Jr., Mylan (2011). «Review of Practical Ethics, 3rd Edition by Peter Singer». The American Journal of Bioethics. 11 (12): 73–75. doi:10.1080/15265161.2011.626728
jstor.org
Fischer, John Martin (1983). «Practical Ethics by Peter Singer». The Philosophical Review. 92 (2): 264–266. JSTOR2184936. doi:10.2307/2184936
nybooks.com
Singer, Peter (14 de agosto de 1980). «Right to Life?». The New York Review of Books (em inglês) (13). ISSN0028-7504. Consultado em 6 de junho de 2024