1. Abel i Fabre, F. 2001. Bioética: Orígenes, presente y futuro. Madrid: MAPFRE.
2. Aiyar, S.S.A. 2009. Socialism kills: The human cost of delayed economic reform in India. Center for Global Liberty and Prosperity 4(October 21): 1–12.
3. Arnold, M. 1882. Literature and science. Cambridge: Cambridge University Press.
4. Bonnar, A. 1944. The catholic doctor. London: Burns Oates & Washbourne.
5. Bouscaren, T.L. 1933. Ethics of ectopic operations. Chicago: Loyola University Press.