Columbia subject headings:
Foreign workers, Tunisian--France--Social conditions--Congresses.
Tunisians--France--Congresses.
Harvard subject headings:
Foreign workers, Tunisian--France--Social conditions--Congresses.
Tunisians--France--Congresses.
Princeton subject headings:
Foreign workers, Tunisian--France--Social conditions--Congresses.
Tunisians--France--Congresses.