Columbia subject headings:
Civilization--Philosophy--Congresses.
Phenomenology--Congresses.
Political science--Philosophy--Congresses.
Harvard subject headings:
Europe--Civilization--Philosophy--Congresses.
Phenomenology--Congresses.
Political science--Europe--Philosophy--Congresses.
Princeton subject headings:
Civilization--Philosophy--Congresses.
Phenomenology--Congresses.
Political science--Philosophy--Congresses.