Columbia subject headings:
Arts--Philosophy--Congresses.
Other (Philosophy) in literature--Congresses.
Other (Philosophy)--Congresses.
Other (Philosophy)--Social aspects--Congresses.
Harvard subject headings:
Arts--Philosophy--Congresses
Other (Philosophy) in literature--Congresses.
Other (Philosophy)--Congresses.
Other (Philosophy)--Social aspects--Congresses.
Princeton subject headings: