Columbia subject headings:
Europe--Civilization--20th century.
Europe--History, Military--20th century.
War and civilization.
War memorials--Europe.
War--Psychological aspects.
World War, 1914-1918--Europe--Psychological aspects.
Harvard subject headings:
Europe--Civilization--20th century
Europe--History, Military--20th century
War and civilization
War memorials--Europe.
War--Psychological aspects
World War, 1914-1918--Europe--Psychological aspects.
World War, 1914-1918--Psychological aspects--Europe.
Princeton subject headings:
Europe--Civilization--20th century.
Europe--History, Military--20th century.
War and civilization.
War memorials--Europe.
War--Psychological aspects.
World War, 1914-1918--Europe--Psychological aspects.