Columbia subject headings:
Harvard subject headings:
Architects--Germany--Biography
Haller, Martin, 1835-1925
Hamburg (Germany)--Buildings, structures, etc.
Hamburg (Germany)--History--19th century--Sources.
Manuscripts, German--History.
Princeton subject headings:
Architects--Germany--Biography.
Haller, Martin, 1835-1925.
Hamburg (Germany)--Buildings, structures, etc.
Hamburg (Germany)--History--19th century.