Erde → Amerika → Nordamerika → USA → Colorado
  • Titelblatt

    Das Geld

    Helfferich, Karl
    4. Aufl, Leipzig : Hirschfeld, 1919
  • Titelblatt

    The theory of interest

    as determined by impatience to spend income and opportunity to invest it
    Fisher, Irving
    New York : Macmillan, 1930