Corwin Edward S. (1957). The President, office and powers, 1787-1957: History and analysis of practice and opinion (4th ed.). New York University Press.
Cita Chicago Style (17a ed.)Corwin Edward S. The President, Office and Powers, 1787-1957: History and Analysis of Practice and Opinion. 4th ed. New York: New York University Press, 1957.
Cita MLA (9a ed.)Corwin Edward S. The President, Office and Powers, 1787-1957: History and Analysis of Practice and Opinion. 4th ed. New York University Press, 1957.
Precaución: Estas citas no son 100% exactas.