Columbia subject headings:
Harvard subject headings:
Democratization--Spain--País Vasco--History.
Federal-state controversies--Spain--History.
País Vasco (Spain)--History--Autonomy and independence movements.
País Vasco (Spain)--History.
País Vasco (Spain)--Politics and government--20th century.
Princeton subject headings:
Democratization--Spain--País Vasco--History.
Federal-state controversies--Spain--History.
País Vasco (Spain)--History--Autonomy and independence movements.
País Vasco (Spain)--Politics and government--20th century.