Dyfyniad APA

Howell, W. G., & Brent, D. M. (2013). Thinking about the presidency: The primacy of power. Princeton University Press.

Dyfyniad Arddull Chicago

Howell, William G., and David Milton Brent. Thinking About the Presidency: The Primacy of Power. Princeton: Princeton University Press, 2013.

Dyfyniad MLA

Howell, William G., and David Milton Brent. Thinking About the Presidency: The Primacy of Power. Princeton University Press, 2013.

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