APA引文

Freeman, J. M., & McDonnell, K. (1987). Tough decisions: A casebook in medical ethics. Oxford Univ. Pr.

芝加哥风格引文

Freeman, John Mark, 与 Kevin McDonnell. Tough Decisions: A Casebook in Medical Ethics. New York [u.a.]: Oxford Univ. Pr, 1987.

MLA引文

Freeman, John Mark, 与 Kevin McDonnell. Tough Decisions: A Casebook in Medical Ethics. Oxford Univ. Pr, 1987.

警告：这些引文格式不一定是100％准确.