Columbia subject headings:
Culture--Philosophy--Congresses.
Humanities--Philosophy--Congresses.
Science and civilization--Congresses.
Science--Philosophy--Congresses.
Science--Social aspects--Congresses.
Harvard subject headings:
Princeton subject headings:
Culture--Philosophy--Congresses.
Humanities--Philosophy--Congresses.
Science and civilization--Congresses.
Science--Philosophy--Congresses.
Science--Social aspects--Congresses.