Columbia subject headings:
Basques--Social conditions.
Violence--Spain.
Harvard subject headings:
Basques--Ethnic identity--Case studies.
Basques--Rites and ceremonies--Case studies.
Basques--Social conditions--Case studies.
Violence--Spain--Case studies.
Princeton subject headings:
Basques--Ethnic identity--Case studies.
Basques--Rites and ceremonies--Case studies.
Basques--Social conditions--Case studies.
Violence--Spain--Case studies.