Columbia subject headings:
Literature--Philosophy--Congresses.
Many (Philosophy)--Congresses.
One (The One in philosophy)--Congresses.
Philosophy, Ancient--Congresses.
Harvard subject headings:
Literature--Philosophy--Congresses
Many (Philosophy)--Congresses.
One (The One in philosophy)--Congresses.
Philosophy, Ancient--Congresses.
Princeton subject headings:
Literature--Philosophy--Congresses.
Many (Philosophy)--Congresses.
One (The One in philosophy)--Congresses.
Philosophy, Ancient--Congresses.