Cita APA (7a ed.)

Morris, I. L. (2010). The American presidency: An analytical approach. Cambridge University Press.

Cita Chicago Style (17a ed.)

Morris, Irwin L. The American Presidency: An Analytical Approach. Cambridge ; New York: Cambridge University Press, 2010.

Cita MLA (8a ed.)

Morris, Irwin L. The American Presidency: An Analytical Approach. Cambridge University Press, 2010.