Thomas Jefferson (2011). “The Papers of Thomas Jefferson, Retirement Series, Volume 7: 28 November 1813 to 30 September 1814”, p.654, Princeton University Press
Marcus Tullius Cicero (1853). “The treatises of M.T. Cicero on the nature of the gods [tr. by T.Francklin]; on divination; on fate; on the republic; on the laws; and on standing for the consulship, tr. chiefly by the ed. C.D.Yonge [and F.Barham].”, p.420
Francis Parkman, David Levin (1983). “France and England in North America: Pioneers of France in the New World. The Jesuits of North America in the seventeenth century. La Salle and the discovery of the Great West. The old régime in Canada”, p.145, Library of America