Clark, J. A., & John A. Clark; Brian F. Schaffner. (2007). Election 2006: An American government supplement. Belmont, CA: Thomson Wadsworth.
Čikaški stil citiranjaClark, John A., i John A. Clark; Brian F. Schaffner. Election 2006: An American Government Supplement. Belmont, CA: Thomson Wadsworth, 2007.
MLA način citiranjaClark, John A., i John A. Clark; Brian F. Schaffner. Election 2006: An American Government Supplement. Belmont, CA: Thomson Wadsworth, 2007.
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