Columbia subject headings:
Documentary photography--Germany--Hamburg--History--19th century.
Hamburg (Germany)--Buildings, structures, etc.--Pictorial works.
Hamburg (Germany)--History--19th century--Pictorial works.
Hamburg (Germany)--History--20th century--Pictorial works.
Historic buildings--Germany--Hamburg--Pictorial works.
Photographers--Germany.
Harvard subject headings:
Documentary photography--Germany--Hamburg--History--19th century.
Hamburg (Germany)--Buildings, structures, etc.--Pictorial works.
Hamburg (Germany)--History--19th century--Pictorial works.
Hamburg (Germany)--History--20th century--Pictorial works.
Historic buildings--Germany--Hamburg--Pictorial works.
Photographers--Germany.
Princeton subject headings:
Documentary photography--Germany--Hamburg.
Hamburg (Germany)--Buildings, structures, etc.--Pictorial works.
Hamburg (Germany)--History--Pictorial works.
Historic buildings--Germany--Hamburg--Pictorial works.