Columbia subject headings:
Corporate state--Germany (West)
Transportation and state--Germany (West)
Transportation--Germany (West)--History--20th century.
Harvard subject headings:
Corporate state--Germany.
Trade associations--European Union countries.
Trade associations--Germany.
Transportation and state--Germany.
Princeton subject headings:
Corporate state--Belgium--Brussels--History.
Corporate state--Germany--Bonn--History.
Industrial policy--Belgium--Brussels--History.
Industrial policy--Germany--Bonn--History.
Transportation--Belgium--Brussels--History.
Transportation--Germany--Bonn--History.