Columbia subject headings:
Harvard subject headings:
Carnap, Rudolf, 1891-1970
Neurath, Otto, 1882-1945.
Quine, W. V. (Willard Van Orman)
Princeton subject headings:
Carnap, Rudolf, 1891-1970.
Neurath, Otto, 1882-1945.
Quine, W. V. (Willard Van Orman)