Krent, H. J. (2005). Presidential Powers. New York University Press.
Cita Chicago Style (17a ed.)Krent, Harold J. Presidential Powers. New York: New York University Press, 2005.
Cita MLA (8a ed.)Krent, Harold J. Presidential Powers. New York University Press, 2005.
Precaución: Estas citas no son 100% exactas.