Cita APA (7a ed.)

Callahan, D., & Engelhardt, H. T., Jr. (1976). Science ethics and medicine. The Hastings Center.

Cita Chicago Style (17a ed.)

Callahan, Daniel, y H. Tristram Engelhardt, Jr. Science Ethics and Medicine. Hastings-on-Hudson (New York): The Hastings Center, 1976.

Cita MLA (9a ed.)

Callahan, Daniel, y H. Tristram Engelhardt, Jr. Science Ethics and Medicine. The Hastings Center, 1976.