Columbia subject headings:
Harvard subject headings:
Discrimination in employment--England--West Midlands.
Foreign workers, East Indian--England--West Midlands.
Iron and steel workers--England--West Midlands.
Iron foundries--England--West Midlands.
Princeton subject headings:
Discrimination in employment--England--West Midlands.
Foreign workers, East Indian--England--West Midlands.
Iron and steel workers--England--West Midlands.
Iron foundries--England--West Midlands.