Cita APA (7a ed.)

Callahan, D. (2012). The roots of bioethics: Health, progress, technology, death. Oxford University Press.

Cita Chicago Style (17a ed.)

Callahan, Daniel. The Roots of Bioethics: Health, Progress, Technology, Death. Oxford: Oxford University Press, 2012.

Cita MLA (9a ed.)

Callahan, Daniel. The Roots of Bioethics: Health, Progress, Technology, Death. Oxford University Press, 2012.