Columbia subject headings:
Finance, Public--Spain--History--18th century.
Spain--Economic conditions.
Spain--Social conditions--To 1800.
Harvard subject headings:
Finance, Public--Spain--History--18th century.
Spain--Economic conditions.
Spain--Social conditions--To 1800.
Princeton subject headings:
Finance, Public--Spain--History--18th century.
Spain--Economic conditions--18th century.
Spain--Social conditions--18th century.