Columbia subject headings:
Harvard subject headings:
Nord-Pas-de-Calais (France)
Nord-Pas-de-Calais (France)--Biography.
Nord-Pas-de-Calais (France)--History.
Princeton subject headings:
Nord-Pas-de-Calais (France)--20th century--History.
Nord-Pas-de-Calais (France)--Social conditions.