Columbia subject headings:
Chemical workers--Labor unions--Germany.
Industriegewerkschaft Chemie-Papier-Keramik.
Paper industry workers--Labor unions--Germany.
Harvard subject headings:
Chemical workers--Labor unions--Germany.
Industriegewerkschaft Chemie-Papier-Keramik.
Paper industry workers--Labor unions--Germany.
Princeton subject headings:
Chemical workers--Labor unions--Germany.
Industriegewerkschaft Chemie-Paper-Keramik.
Paper industry workers--Labor unions--Germany.