Columbia subject headings:
Finance, Public--Spain--History.
Ruiz, Simón.
Spain--Economic conditions.
Harvard subject headings:
Finance, Public--Spain--History
Ruiz, Simón, active 1550-1565.
Ruiz, Simón.
Spain--Economic conditions.
Princeton subject headings:
Finance, Public--Spain--History.
Ruiz, Simón.
Spain--Economic conditions.