Columbia subject headings:
Industrial relations--Great Britain--History.
Labor laws and legislation--Great Britain--History.
Weapons industry--Law and legislation--Great Britain--History.
World War, 1914-1918.
Harvard subject headings:
Defense industries--Law and legislation--Great Britain--History.
Industrial relations--Great Britain--History
Labor laws and legislation--Great Britain--History
Military weapons--Law and legislation--Great Britain--History.
World War, 1914-1918.
Princeton subject headings:
Defense industries--Law and legislation--Great Britain--History.
Industrial relations--Great Britain--History.
Labor laws and legislation--Great Britain--History.
World War, 1914-1918.