Columbia subject headings:
Harvard subject headings:
Radolfzell am Bodensee (Germany)--Economic conditions--20th century.
Radolfzell am Bodensee (Germany)--History--20th century--Sources.
Radolfzell am Bodensee (Germany)--Politics and government--20th century.
Radolfzell am Bodensee (Germany)--Social conditions--20th century.
Princeton subject headings:
Radolfzell am Bodensee (Germany)--Economic conditions--20th century.
Radolfzell am Bodensee (Germany)--History--20th century--Sources.
Radolfzell am Bodensee (Germany)--Politics and government--20th century.
Radolfzell am Bodensee (Germany)--Social conditions--20th century.