Howell, J. H., & Sale, W. F. (1995). Life choices: A Hastings Center introduction to bioethics. Georgetown University Press.
芝加哥风格引文Howell, Joseph H., 与 William Frederick Sale. Life Choices: A Hastings Center Introduction to Bioethics. Washington, DC: Georgetown University Press, 1995.
MLA引文Howell, Joseph H., 与 William Frederick Sale. Life Choices: A Hastings Center Introduction to Bioethics. Georgetown University Press, 1995.
警告：这些引文格式不一定是100％准确.