Columbia subject headings:
Harvard subject headings:
Europe--Guidebooks.
War memorials--Europe--Guidebooks.
World War, 1914-1918--Campaigns--Western Front
World War, 1914-1918--Monuments
Princeton subject headings:
Europe--Guidebooks.
Guidebooks.
War memorials--Europe--Guidebooks.
World War, 1914-1918--Campaigns--Western Front.
World War, 1914-1918--Monuments.