Columbia subject headings:
Civilization, Modern--20th century--Congresses.
France--Economic conditions--1945---Congresses.
France--Politics and government--1958---Congresses.
France--Social conditions--1945-1995--Congresses.
Harvard subject headings:
Civilization, Modern--20th century--Congresses
France--Economic conditions--1945---Congresses.
France--Politics and government--1958---Congresses.
France--Social conditions--1945---Congresses.
France--Social conditions--1945-1995--Congresses.
Princeton subject headings:
Civilization, Modern--20th century--Congresses.
France--Economic conditions--1945---Congresses.
France--Politics and government--1958---Congresses.
France--Social conditions--1945-1995--Congresses.