Columbia subject headings:
Harvard subject headings:
Middle class--Spain--Political activity.
Santander (Spain)--History.
Spain--History--Bourbon Restoration, 1814-1868.
Princeton subject headings:
Liberalism--Spain--Santander (Province)--History--19th century.
Middle class--Spain--Santander (Province)--Political activity--History--19th century.
Santander (Spain : Province)--History.