Columbia subject headings:
ETA (Organization)--History.
Terrorism--Spain.
Harvard subject headings:
ETA (Organization)--History--21st century.
ETA (Organization)--History.
País Vasco (Spain)--History--Autonomy and independence movements.
Terrorism--Spain--History.
Terrorism--Spain--País Vasco
Princeton subject headings:
ETA (Organization)--History.
País Vasco (Spain)--History--Autonomy and independence movements.
Terrorism--Spain--History.