Columbia subject headings:
Kahn-Freund, Otto, 1900-1979.
Labor laws and legislation--Europe.
Harvard subject headings:
Kahn-Freund, Otto, 1900-1979.
Kahn-Freund, Otto, Sir, 1900-
Labor laws and legislation--Europe
Princeton subject headings:
Kahn-Freund, Otto, 1900-1979.
Labor laws and legislation--Europe.