Columbia subject headings:
Harvard subject headings:
Business and politics--Germany--History.
Engineers--Germany--Biography.
Gutehoffnungshütte--History.
Industrialists--Germany--Biography
Metal trade--Germany--Ruhr (Region)--History.
Reusch, Paul, 1868-1956.
Princeton subject headings:
Gutehoffnungshütte--History.
Industrialists--Germany--Biography.
Reusch, Paul, 1868-1956.