Columbia subject headings:
Harvard subject headings:
Capitalism--Germany--History--Congresses.
Economic development--Germany--History--Congresses.
Germany--Economic policy--Congresses.
National socialism--Economic aspects--Germany--Congresses.
Neoliberalism--Germany--Congresses.
Princeton subject headings:
Germany--Economic policy--19th century--Congresses.
Germany--Economic policy--20th century--Congresses.
Industries--Germany--Congresses.