Columbia subject headings:
Constitutional history--Spain--País Vasco.
País Vasco (Spain)--Politics and government--19th century.
Power (Social sciences)--Spain--País Vasco.
Harvard subject headings:
Constitutional history--Spain--País Vasco
País Vasco (Spain)--Politics and government--19th century.
Power (Social sciences)--Spain--País Vasco.
Princeton subject headings:
País Vasco (Spain)--History--19th century.
País Vasco (Spain)--Politics and government.