Nelson, C. J., Dulio, D. A., & Medvic, S. K. (2002). Shades of gray: Perspectives on campaign ethics. The Brookings Institution.
Chicago Style (17. basım) AtıfNelson, Candice J., David A. Dulio, ve Stephen K. Medvic. Shades of Gray: Perspectives on Campaign Ethics. Washington, D. C: The Brookings Institution, 2002.
MLA (9th ed.) AtıfNelson, Candice J., et al. Shades of Gray: Perspectives on Campaign Ethics. The Brookings Institution, 2002.
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