Mackenzie, G. C., & Hafken, M. (2002). Scandal proof: Do ethics laws make government ethical? Brookings Institution Press.
Chicago-čujuhus (17. p.)Mackenzie, G. Calvin, juo Michael Hafken. Scandal Proof: Do Ethics Laws Make Government Ethical? Washington, D.C.: Brookings Institution Press, 2002.
MLA-čujuhus (9. p.)Mackenzie, G. Calvin, juo Michael Hafken. Scandal Proof: Do Ethics Laws Make Government Ethical? Brookings Institution Press, 2002.
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