Columbia subject headings:
Harvard subject headings:
Anthroposophy--Congresses.
Europe 1992--Congresses
European Economic Community countries--Foreign economic relations--Switzerland--Congresses.
European federation--Congresses
Switzerland--Foreign economic relations--European Economic Community countries--Congresses.
Princeton subject headings:
Europe--Civilization--1945---Congresses.
Europe--Intellectual life--20th century--Congresses.