Columbia subject headings:
Philosophers--Germany--Biography.
Wittgenstein, Ludwig, 1889-1951--Homes and haunts--England--Cambridge.
Harvard subject headings:
Philosophers--Germany--Biography
Wittgenstein, Ludwig, 1889-1951--Homes and haunts--England--Cambridge.
Princeton subject headings:
Cambridge (England)--Intellectual life--20th century.
Wittgenstein, Ludwig, 1889-1951.