Citazione Stile APA (7a Edizione)

Krent, H. J. (2005). Presidential powers. New York University Press.

Citazione stile Chigago Style (17a edizione)

Krent, Harold J. Presidential Powers. New York: New York University Press, 2005.

Citatione MLA (9a ed.)

Krent, Harold J. Presidential Powers. New York University Press, 2005.