Cita APA (7a ed.)

Beauchamp, T. L., & Childress, J. F. (2009). Principles of biomedical ethics (6th ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Beauchamp, Tom L., y James F. Childress. Principles of Biomedical Ethics. 6th ed. New York ; Oxford: Oxford University Press, 2009.

Cita MLA (9a ed.)

Beauchamp, Tom L., y James F. Childress. Principles of Biomedical Ethics. 6th ed. Oxford University Press, 2009.