Columbia subject headings:
Harvard subject headings:
Chemists--Germany--Biography
Duisberg, Carl, 1861-1935
Farbenfabriken Bayer Aktiengesellschaft--History.
Industrialists--Germany--Biography
Interessengemeinschaft Farbenindustrie Aktiengesellschaft--History.
Princeton subject headings:
Chemical industry--Germany--History.
Chemists--Germany--Biography.
Duisberg, Carl, 1861-1935.
Farbenfabriken Bayer Aktiengesellschaft--History.
Interessengemeinschaft Farbenindustrie Aktiengesellschaft--History.