Hart, J. (1948). The American presidency in action, 1789: A study in constitutional history. Macmillan Co.
Chicago-referens (17:e uppl.)Hart, James. The American Presidency in Action, 1789: A Study in Constitutional History. New York: Macmillan Co, 1948.
MLA-referens (9:e uppl.)Hart, James. The American Presidency in Action, 1789: A Study in Constitutional History. Macmillan Co, 1948.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.