Columbia subject headings:
European federation.
France--Foreign relations--Germany.
Germany--Foreign relations--France.
Revue de Genève.
Traz, Robert de, 1884-1951.
Harvard subject headings:
European Union--History.
France--Foreign relations--Germany.
Germany--Foreign relations--France.
Revue de Genève.
Traz, Robert de, 1884-1951.
Princeton subject headings: