APA-čujuhus (7. p.)
ebrary, Inc, Nelson, C. J., Dulio, D. A., & Medvic, S. K. (2002). Shades of gray: Perspectives on campaign ethics. Brookings Institution Press.
Chicago-čujuhus (17. p.)
ebrary, Inc, Candice J. Nelson, David A. Dulio, juo Stephen K. Medvic. Shades of Gray: Perspectives on Campaign Ethics. Washington, D.C.: Brookings Institution Press, 2002.
MLA-čujuhus (9. p.)
ebrary, Inc, et al. Shades of Gray: Perspectives on Campaign Ethics. Brookings Institution Press, 2002.
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