Columbia subject headings:
Harvard subject headings:
Art, European
Essays
Europe--Politics and government--20th century.
Europe--Social conditions--20th century.
European literature--History and criticism.
Princeton subject headings:
Arts and society.
Europe--Politics and government--1871-1918.
Europe--Politics and government--1918-1945.
Politics and literature.
World War, 1914-1918.
World War, 1939-1945--Causes.