Columbia subject headings:
Foreign workers--France--History.
France--Emigration and immigration--History.
France--Population--History.
Immigrants--France--History.
Harvard subject headings:
Foreign workers--France--History.
France--Emigration and immigration--History.
France--Population--History.
Immigrants--France--History.
Princeton subject headings:
Families--France--History--20th century.
Foreign workers--France--History--20th century.
France--Emigration and immigration--Social aspects.
Immigrants--France--History--20th century.
Labor market--France--History--20th century.