1. George Kish, "The Origins of Cartography", The Dictionary of Art (London: Macmillan, 1996), vol. 20, p. 363.
  2. Christopher Terrell,"The Seaman's View", The Map Collector, No. 31, June 1985, p. 3.
  3. Ibid.
  4. Paul H. Rem, "Vinckboons", The Dictionary of Art (London: Macmillan, 1996), vol. 32, p. 586.
  5. Walter W. Ristow and R. A. Skelton, Nautical Charts on Vellum in the Library of Congress (Washington: Library of Congress, 1977), p. 25.
  6. David J. Weber, The Spanish Frontier in North America (New Haven: Yale University Press, 1992), p. 55.
  7. José de Vargas y Ponce, Voyage of Discovery to the Strait of Magellan; with an Account of the Manners and Customs of the Inhabitants; and of the Natural Productions of Patagonia.... Work translated from the Spanish by anonymous translator. (London, 1820; Milford House, 1973, reprint), pp. v-vi.
  8. Annette Melville, Special Collections in the Library of Congress: A Selective Guide (Washington: Library of Congress, 1980), p. 181.
  9. Lawrence Martin (rev. by Walter W. Ristow), "South American Historical Maps", Library of Congress Quarterly Journal of Current Acquisitions Vol. 1, no. 3, 1944, reproduced in A la Carte (Washington: Library of Congress, 1972), p. 189.
  10. John R. Hébert, "Vicente Sebastián Pintado, Surveyor General of Spanish West Florida 1805-1817. The Man and his Maps", Imago Mundi, Vol. 39 (1987), p. 50-72.
  11. John R. Hébert, "Maps by Ephraim George Squier: Journalist Scholar and Diplomat", The Quarterly Journal of the Library of Congress, Vol. 29, No. 1 (January 1972), p. 14-31.

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