Columbia subject headings:
Metaphysics--Comparative studies--Congresses.
Metaphysics--History--Congresses.
Ontology--Comparative studies--Congresses.
Phenomenology--Congresses.
Harvard subject headings:
Metaphysics--Comparative studies--Congresses.
Metaphysics--History--Congresses.
Ontology--Comparative studies--Congresses.
Phenomenology--Congresses.
Princeton subject headings:
Metaphysics--Comparative studies--Congresses.
Metaphysics--History--Congresses.
Ontology--Comparative studies--Congresses.
Phenomenology--Congresses.