Hughes, E. J. (1973). The living Presidency: The resources and dilemmas of the American Presidential office. Coward, McCann & Geoghegan.
Cita Chicago Style (17a ed.)Hughes, Emmet John. The Living Presidency: The Resources and Dilemmas of the American Presidential Office. New York: Coward, McCann & Geoghegan, 1973.
Cita MLA (8a ed.)Hughes, Emmet John. The Living Presidency: The Resources and Dilemmas of the American Presidential Office. Coward, McCann & Geoghegan, 1973.
Precaución: Estas citas no son 100% exactas.