Columbia subject headings:
Cassirer, Ernst, 1874-1945--Congresses.
Philosophical anthropology--Congresses.
Philosophy, Modern--20th century--Congresses.
Piaget, Jean, 1896-1980--Congresses.
Process philosophy--Congresses.
Symbolism--Congresses.
Whitehead, Alfred North, 1861-1947--Congresses.
Harvard subject headings:
Cassirer, Ernst, 1874-1945--Congresses.
Knowledge, Theory of--Congresses
Piaget, Jean, 1896-1980--Congresses.
Structuralism--Congresses.
Whitehead, Alfred North, 1861-1947--Congresses.
Princeton subject headings:
Cassirer, Ernst, 1874-1945--Congresses.
Philosophical anthropology--Congresses.
Philosophy, Modern--20th century--Congresses.
Piaget, Jean, 1896-1980--Congresses.
Process philosophy--Congresses.
Symbolism--Congresses.
Whitehead, Alfred North, 1861-1947--Congresses.