Columbia subject headings:
Harvard subject headings:
Basque language--Political aspects.
Ireland--Politics and government.
Irish language--Political aspects.
Language policy--Ireland.
Language policy--Spain--País Vasco
Nationalism--Ireland--History
Nationalism--Spain--País Vasco--History
País Vasco (Spain)--Politics and government.
Princeton subject headings:
Basque language--Political aspects.
Irish language--Political aspects.
Language policy--Ireland.
Language policy--Spain.