Columbia subject headings:
Berber languages--Congresses.
Berber languages--Social aspects--Congresses.
Languages in contact--Africa, North--Congresses.
Harvard subject headings:
Berber languages--Congresses.
Berber languages--History--Congresses.
Berber languages--Social aspects--Congresses.
Languages in contact--Africa, North--Congresses.
Princeton subject headings: