Columbia subject headings:
Harvard subject headings:
Bavaria (Germany)--Economic conditions--19th century--Exhibitions.
Bavaria (Germany)--Economic conditions--20th century--Exhibitions.
Industries--Germany--Bavaria--19th century--Exhibitions.
Industries--Germany--Bavaria--20th century--Exhibitions.
Princeton subject headings:
Bavaria (Germany)--Economic conditions--19th century--Exhibitions.
Bavaria (Germany)--History--19th century--Exhibitions.
Industries--Germany--Bavaria--History--19th century--Exhibitions.