Columbia subject headings:
Citizenship--Spain--País Vasco.
Direct democracy--Spain--País Vasco.
Local government--Spain--País Vasco.
Political participation--Spain--País Vasco.
Harvard subject headings:
Princeton subject headings:
Citizenship--Spain--País Vasco.
Direct democracy--Spain--País Vasco.
Local government--Spain--País Vasco.
Political participation--Spain--País Vasco.