Columbia subject headings:
ETA (Organization)
Nationalism--Spain--País Vasco.
Political crimes and offenses--Spain.
Harvard subject headings:
ETA (Organization)
Government, Resistance to--Spain--País Vasco--History--20th century.
Nationalism--Spain--País Vasco--History--20th century
País Vasco (Spain)--Politics and government--20th century.
Terrorism--Spain--País Vasco--History--20th century.
Princeton subject headings: