Columbia subject headings:
Harvard subject headings:
Baden-Württemberg (Germany)--Commerce--History--Sources--Bibliography--Catalogs.
Business enterprises--Germany--Baden-Württemberg--History--Sources--Bibliography--Catalogs.
Industries--Germany--Baden-Württemberg--History--Sources--Bibliography--Catalogs.
Wirtschaftsarchiv Baden-Württemberg--Catalogs.
Princeton subject headings:
Baden-Württemberg (Germany)--Commerce--History--Sources--Bibliography--Catalogs.
Business enterprises--Germany--Baden-Württemberg--History--Sources--Bibliography--Catalogs.
Industries--Germany--Baden-Württemberg--History--Sources--Bibliography--Catalogs.