Marshall McLuhan, Bruce R. Powers (1989). “The global village: transformations in world life and media in the 21st century”, Oxford University Press, USA
George Washington, Jared Sparks (1836). “The Writings of George Washington: pt. IV. Letters official and private, from the beginning of his presidency to the end of his life: (v. 10) May, 1789-November, 1794. (v. 11) November, 1794-December, 1799”, p.440