Columbia subject headings:
Harvard subject headings:
Industries--Germany--Osnabrück Region (Germany)--History--19th century--Exhibitions.
Industries--Germany--Osnabrück Region (Germany)--History--20th century--Exhibitions.
Osnabrück Region (Germany)--Commerce--History--19th century--Exhibitions.
Osnabrück Region (Germany)--Commerce--History--20th century--Exhibitions.
Princeton subject headings:
Osnabrück (Germany)--Commerce--History--Exhibitions.