Columbia subject headings:
Europe--Politics and government--1918-1945--Congresses.
Germany--History--1918-1933--Congresses.
World War, 1939-1945--Causes--Congresses.
Harvard subject headings:
Europe--Civilization--20th century--Congresses.
Europe--Politics and government--1918-1945--Congresses.
Germany--History--1918-1933--Congresses.
World War, 1939-1945--Causes--Congresses.
Princeton subject headings:
Europe--Politics and government--1918-1945--Congresses.
Germany--History--1918-1933--Congresses.
World War, 1939-1945--Causes--Congresses.