Packard, J. M. (1983). American monarchy: A social guide to the Presidency. New York: Delacorte Press.
Dyfyniad Arddull ChicagoPackard, Jerrold M. American Monarchy: A Social Guide to the Presidency. New York: Delacorte Press, 1983.
Dyfyniad MLAPackard, Jerrold M. American Monarchy: A Social Guide to the Presidency. New York: Delacorte Press, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.