Columbia subject headings:
Harvard subject headings:
Mineral industries--Germany--Bavaria--History.
Verein der Bayerischen Metallindustrie--History.
Princeton subject headings:
Bavaria (Germany)--Economic conditions--1918-
Employers' associations--Germany--Bavaria--History--20th century.
Mineral industries--Germany--Bavaria--History--20th century--Sources.
Mineral industries--Germany--Bavaria--History--20th century.
Verein der Bayerischen Metallindustrie--History.