Columbia subject headings:
Architecture--Germany--Hamburg--History--20th century.
Architecture--Germany--Hamburg.
City planning--Germany (West)
City planning--Germany--Hamburg.
Harvard subject headings:
Architecture, Modern--20th century--Germany--Hamburg.
Architecture--Germany--Hamburg.
City planning--Germany (West)
City planning--Germany--Hamburg
Princeton subject headings:
Architecture, Modern--20th century--Germany, West--Hamburg.
Architecture--Germany--Hamburg.
City planning--Germany--Hamburg.