Corwin, E. S. (1948). The President: Office and powers, 1787-1957 : history and analysis of practice and opinion (3th ed. rev.). University Press.
Cita Chicago Style (17a ed.)Corwin, Edward Samuel. The President: Office and Powers, 1787-1957 : History and Analysis of Practice and Opinion. 3th ed. rev. New York: University Press, 1948.
Cita MLA (9a ed.)Corwin, Edward Samuel. The President: Office and Powers, 1787-1957 : History and Analysis of Practice and Opinion. 3th ed. rev. University Press, 1948.
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