Cita APA (7a ed.)

Siemers, D. J. (2009). Presidents and Political Thought. University of Missouri Press.

Cita Chicago Style (17a ed.)

Siemers, David J. Presidents and Political Thought. Columbia: University of Missouri Press, 2009.

Cita MLA (8a ed.)

Siemers, David J. Presidents and Political Thought. University of Missouri Press, 2009.