Columbia subject headings:
Berlin (Germany)--Buildings, structures, etc.
Berliner S-Bahn (Germany)
Iron and steel bridges--Germany--Berlin.
Railroad bridges--Germany--Berlin.
Harvard subject headings:
Bridges--Germany--Berlin.
Iron and steel bridges--Germany--Berlin--Design and construction.
Princeton subject headings:
Berlin (Germany)--Buildings, structures, etc.
Berliner S-Bahn (Germany)
Iron and steel bridges--Germany--Berlin.
Railroad bridges--Germany--Berlin.