Columbia subject headings:
Harvard subject headings:
Spain--Politics and government--19th century.
Spain--Social conditions--19th century.
Princeton subject headings:
Decentralization in government--Spain--History--19th century.
Federal government--Spain--History--19th century.
Regionalism--Spain--History--19th century.
Spain--Administrative and political divisions--History--19th century.
Spain--Politics and government--19th century.