Columbia subject headings:
Buildings--Repair and reconstruction--France--Pas-de-Calais--History--Congresses.
Pas-de-Calais (France)--History--Congresses.
World War, 1914-1918--Destruction and pillage--France--Pas-de-Calais--Congresses.
Harvard subject headings:
Buildings--France--Pas-de-Calais--Repair and reconstruction--History--Congresses.
Pas-de-Calais (France)--History--Congresses.
World War, 1914-1918--Destruction and pillage--France--Pas-de-Calais--Congresses.
Princeton subject headings:
Buildings--France--Pas-de-Calais--Repair and reconstruction--History--Congresses.
Pas-de-Calais (France)--History--Congresses.
World War, 1914-1918--Destruction and pillage--France--Pas-de-Calais--Congresses.