Columbia subject headings:
Civilization--Philosophy--Congresses.
Idea (Philosophy)--History--Congresses.
Learning and scholarship--History--Congresses.
Polemics--Congresses.
Harvard subject headings:
Civilization--Philosophy--Congresses
Idea (Philosophy)--History--Congresses.
Learning and scholarship--History--Congresses.
Polemics--Congresses.
Princeton subject headings:
Civilization--Philosophy--Congresses.
Idea (Philosophy)--History--Congresses.
Learning and scholarship--History--Congresses.
Polemics--Congresses.