ebrary, Inc, Sullivan, S., & Schmidt, D. J. (2008). Difficulties of ethical life. Fordham University Press.
芝加哥风格引文ebrary, Inc, Shannon Sullivan, 与 Dennis J. Schmidt. Difficulties of Ethical Life. New York: Fordham University Press, 2008.
MLA引文ebrary, Inc, et al. Difficulties of Ethical Life. Fordham University Press, 2008.
警告：这些引文格式不一定是100％准确.