Nelson, C. J., Dulio, D. A., & Medvic, S. K. (2002). Shades of gray: Perspectives on campaign ethics. Brookings Institution Press.
芝加哥风格引文Nelson, Candice J., David A. Dulio, 与 Stephen K. Medvic. Shades of Gray: Perspectives on Campaign Ethics. Washington, D.C.: Brookings Institution Press, 2002.
MLA引文Nelson, Candice J., et al. Shades of Gray: Perspectives on Campaign Ethics. Brookings Institution Press, 2002.
警告：这些引文格式不一定是100％准确.