Columbia subject headings:
Somme, 1st Battle of the, France, 1916--Pictorial works.
Verdun, Battle of, Verdun, France, 1916--Pictorial works.
Harvard subject headings:
Somme, 1st Battle of the, France, 1916--Pictorial works.
Verdun, Battle of, Verdun, France, 1916--Pictorial works.
Princeton subject headings:
Somme, 1st Battle of the, France, 1916--Pictorial works.
Verdun, Battle of, Verdun, France, 1916--Pictorial works.