Hirschfield, R. S. (1982). The power of the presidency: Concepts and controversy (3. edition.). New York: Aldine Publishing Company.
Citación estilo ChicagoHirschfield, Robert S. The Power of the Presidency: Concepts and Controversy. 3. edition. New York: Aldine Publishing Company, 1982.
Cita MLAHirschfield, Robert S. The Power of the Presidency: Concepts and Controversy. 3. edition. New York: Aldine Publishing Company, 1982.
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