Columbia subject headings:
Harvard subject headings:
Europe--Relations--Germany.
European Parliament--History--20th century.
European federation--History--20th century
Germany--Politics and government--20th century
Germany--Relations--Europe.
Hallstein, Walter, 1901-1982.
Statesmen--Germany--Biography.
Princeton subject headings:
Europe--Relations--Germany.
European Parliament--History--20th century.
European federation--History--20th century.
Germany--Politics and government--20th century.
Germany--Relations--Europe.
Hallstein, Walter, 1901-1982.
Statesmen--Germany--Biography.