Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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