Columbia subject headings:
Labor mobility--France--History--19th century.
Labor mobility--France--History--20th century.
Migration, Internal--France--History--19th century.
Migration, Internal--France--History--20th century.
Harvard subject headings:
Labor mobility--France--History--19th century.
Labor mobility--France--History--20th century.
Migration, Internal--France--History--19th century.
Migration, Internal--France--History--20th century.
Princeton subject headings:
Labor mobility--France--History--19th century.
Labor mobility--France--History--20th century.
Migration, Internal--France--History--19th century.
Migration, Internal--France--History--20th century.