Columbia subject headings:
ETA (Organization)
Nationalism--Spain--País Vasco--History--20th century.
País Vasco (Spain)--Politics and government--20th century.
Terrorism--Spain--País Vasco--History--20th century.
Harvard subject headings:
ETA (Organization)
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:
ETA (Organization)
Insurgency--Spain--History.
País Vasco (Spain)--Politics and government.
Spain--History--Autonomy and independence movements.
Spain--Politics and government--1975-.