Columbia subject headings:
Verdun, Battle of, Verdun, France, 1916.
World War, 1914-1918--Campaigns--France--Verdun.
Harvard subject headings:
Verdun, Battle of, Verdun, France, 1916.
World War, 1914-1918--Campaigns--France
World War, 1914-1918--Campaigns--France--Verdun.
Princeton subject headings:
Verdun, Battle of, Verdun, France, 1916.
World War, 1914-1918--Campaigns--France.