Tohutoro APA (7th ed.)
Siemers, D. J. (2009). Presidents and political thought. University of Missouri Press.
Tohutoru Kātū Chicago (17th ed.)
Siemers, David J. Presidents and Political Thought. Columbia: University of Missouri Press, 2009.
Tohutoro MLA (9th ed.)
Siemers, David J. Presidents and Political Thought. University of Missouri Press, 2009.
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