Columbia subject headings:
Architecture, Italian--Germany--Hannover--20th century.
Studio Iosa Ghini (Italy)
Subways--Germany--Hannover.
Harvard subject headings:
Architecture--Germany--Hannover--History.
Architecture--Germany--History--20th century
Hannover (Germany)--Buildings, structures, etc.
Studio Iosa Ghini.
Subway stations--Germany--Hannover--Design and construction.
Subways--Germany--Hannover--Design and construction.
U-Bahnhof Kröpcke (Hannover, Germany)
Princeton subject headings: