Columbia subject headings:
Harvard subject headings:
Liberalism--Spain--History--19th century
Spain--Economic conditions--19th century.
Spain--Economic policy.
Princeton subject headings:
Liberalism--Spain--History--19th century.
Spain--Commerce--History--19th century.
Spain--Economic conditions--19th century.
Spain--Economic policy--History--19th century.
Spain--History--1868-1931.
Tariff--Law and legislation--Spain--History--19th century.