Columbia subject headings:
Harvard subject headings:
Chemical industry--Germany--History--20th century.
Chemical industry--Political aspects--Germany--History--20th century.
Chemical industry--Political aspects--Germany--History.
Hoechst AG--History.
Interessengemeinschaft Farbenindustrie Aktiengesellschaft--History.
National socialism.
Princeton subject headings:
Chemical industry--Germany--History--20th century.
Chemical industry--Political aspects--Germany--History.
Hoechst AG--History.
National socialism.