Columbia subject headings:
Germany--Economic policy--History--19th century--Congresses.
Germany--Economic policy--History--20th century--Congresses.
Industrial laws and legislation--Germany--History--19th century--Congresses.
Industrial laws and legislation--Germany--History--20th century--Congresses.
Industrial organization--Germany.
Trade regulation--Germany--History--19th century--Congresses.
Trade regulation--Germany--History--20th century--Congresses.
Harvard subject headings:
Germany--Economic policy--19th century--Congresses.
Germany--Economic policy--20th century--Congresses.
Industrial laws and legislation--Germany--History--19th century--Congresses.
Industrial laws and legislation--Germany--History--20th century--Congresses.
Industrial organization--Germany.
Trade regulation--Germany--History--19th century--Congresses.
Trade regulation--Germany--History--20th century--Congresses.
Princeton subject headings:
Germany--Economic policy--History--19th century--Congresses.
Germany--Economic policy--History--20th century--Congresses.
Industrial laws and legislation--Germany--History--19th century--Congresses.
Industrial laws and legislation--Germany--History--20th century--Congresses.
Jurisprudence--Germany--History--Congresses.
Law and economics--History--Congresses.
Trade regulation--Germany--History--19th century--Congresses.
Trade regulation--Germany--History--20th century--Congresses.