APA-viite (7. p.)
Karch, A. (2007). Democratic laboratories: Policy diffusion among the American states. University of Michigan Press.
Chicago-viite (17. p.)
Karch, Andrew. Democratic Laboratories: Policy Diffusion Among the American States. Ann Arbor: University of Michigan Press, 2007.
MLA-viite (9. p.)
Karch, Andrew. Democratic Laboratories: Policy Diffusion Among the American States. University of Michigan Press, 2007.
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