Columbia subject headings:
Finance, Public--Spain--History.
Spain--Commerce--History.
Spain--History--Philip IV, 1621-1665.
Harvard subject headings:
Finance, Public--Spain--History
Spain--Commerce--History.
Spain--History--Philip IV, 1621-1665.
Princeton subject headings:
Finance, Public--Spain--History.
Spain--Commerce--History.
Spain--History--Philip IV, 1621-1665.