Columbia subject headings:
Harvard subject headings:
Coudenhove-Kalergi, Richard Nicolaus, Graf von, 1894-1972.
Europe--Politics and government--20th century.
European federation--History--20th century
Internationalists--Austria--Biography.
Internationalists--Europe--Biography.
Paneuropa-Union--History.
Princeton subject headings:
Coudenhove-Kalergi, Richard Nicolaus, Graf von, 1894-1972.
Europe--Politics and government--20th century.
European federation--History--20th century.
Internationalists--Austria--Biography.
Internationalists--Europe--Biography.
Paneuropa-Union--History.