Columbia subject headings:
Logical positivism.
Naturalism.
Neurath, Otto, 1882-1945.
Vienna circle.
Harvard subject headings:
Institut Wiener Kreis.
Logical positivism.
Naturalism.
Neurath, Otto, 1882-1945.
Princeton subject headings:
Logical positivism.
Naturalism.
Neurath, Otto, 1882-1945.
Vienna circle.