Columbia subject headings:
Architects--Germany--Hamburg--Biography--Exhibitions.
Architecture--Germany--Hamburg--History--Exhibitions.
City planning--Germany--Hamburg--Exhibitions.
Hamburg (Germany)--Buildings, structures, etc.
Harvard subject headings:
Princeton subject headings:
Architects--Germany--Hamburg--Exhibitions.
Architecture--Germany--Hamburg--19th century--Exhibitions.
Architecture--Germany--Hamburg--20th century--Exhibitions.