Columbia subject headings:
Conglomerate corporations--Germany--History.
Friedrich Flick Industrieverwaltung--History.
National socialism--Economic aspects.
Harvard subject headings:
Business and politics--Germany--History--20th century.
Friedrich Flick Industrieverwaltung--History.
Steel industry and trade--Germany--History--20th century.
Princeton subject headings:
Conglomerate corporations--Germany--History.
Friedrich Flick Industrieverwaltung--History.
National socialism--Economic aspects.