Ledyard John. John Ledyard’s Journey Through Russia and Siberia 1787–1788: The Journal and Selected Letters. Ed. Stephen D. Watrous. Madison: Univ. of Wisconsin Press, 1966. P. 3–10.
Bassin Mark. Inventing Siberia: Visions of the Russian East in the Early Nineteenth Century // American Historical Review 26, no.3 (June 1991). P. 767–770.
Lortholary Albert. Le Mirage russe en France au XVIIIe siecle. Paris: Boivin, 1951. P. 112–114; Mohrenschildt Dmitri von. Russia in the Intellectual Life of Eighteenth- Century France. New York: Columbia Univ. Press, 1936. P. 191–197; Chappe d Auteroche. Voyage en Siberie. 4 vols. Paris: Chez Debure, 1768.
Ibid. P. 145, 153, 156–158, 161.
Duchet Michele. Anthropologie et Historie au siecle des lumieres: Buffon, Voltaire, Rousseau, Helvetius, Diderot. Paris: Francois Maspero, 1971. P. 258; Marshall P.J. and Glyndwr Williams. The Great Map of Mankind: British Perception of the World in the Age of Enlightenment. London: J.M. Dent, 1982. P. 246; Hume David. Of National Characters // Essays: Moral, Political, and Literary: By David Hume. Vol. I. Ed. Т.Н. Green, Т.Н. Grose. London, 1982; rpt. Scientia Verlag Aalen, 1964. P. 252.
Ibid. P. 144, 164, 177, 182, 194–195.