Columbia subject headings:
Religion and ethics--Congresses.
Wittgenstein, Ludwig, 1889-1951--Criticism and interpretation--Congresses.
Harvard subject headings:
Religion and ethics--Congresses.
Wittgenstein, Ludwig, 1889-1951--Criticism and interpretation--Congresses.
Princeton subject headings:
Religion and ethics--Congresses.
Wittgenstein, Ludwig, 1889-1951--Criticism and interpretation--Congresses.