Columbia subject headings:
Philosophy, Modern--21st century--Congresses.
Philosophy--In mass media--Congresses.
Harvard subject headings:
Existentialism--Congresses.
Philosophy, Modern--Congresses.
Spinoza, Benedictus de, 1632-1677--Congresses.
Princeton subject headings:
Existentialism--Congresses.
Philosophy, Modern--Congresses.
Spinoza, Benedictus de, 1632-1677--Congresses.