Columbia subject headings:
Cleaning compounds industry--Germany--History--20th century.
Detergent industry--Germany--History--20th century.
Germany--Economic policy--1933-1945.
Interessengemeinschaft Farbenindustrie Aktiengesellschaft--History.
National socialism--Economic aspects.
Soap factories--Germany--History--20th century.
Harvard subject headings:
Cleaning compounds industry--Germany--History--20th century.
Detergent industry--Germany--History--20th century.
Germany--Economic policy--1933-1945.
Interessengemeinschaft Farbenindustrie Aktiengesellschaft--History.
National socialism--Economic aspects.
Soap factories--Germany--History--20th century.
Princeton subject headings: