Columbia subject headings:
Europe--Economic conditions--1945---Congresses.
Europe--Economic integration--Congresses.
Schuman plan--Congresses.
Harvard subject headings:
Europe--Economic conditions--1945---Congresses.
Europe--Economic integration--Congresses.
European Coal and Steel Community--Congresses.
Schuman plan--Congresses.
Princeton subject headings:
European Coal and Steel Community--Congresses.
Schuman plan--Congresses.