Columbia subject headings:
Harvard subject headings:
Immigrants--Spain--País Vasco--Social conditions.
Immigrants--Spain--País Vasco.
Marginality, Social--Spain--País Vasco.
País Vasco (Spain)--Ethnic relations.
Social integration--Spain--País Vasco.
Princeton subject headings:
Immigrants--Spain--País Vasco--Social conditions.
Immigrants--Spain--País Vasco.
Marginality, Social--Spain--País Vasco.
País Vasco (Spain)--Ethnic relations.
Social integration--Spain--País Vasco.