Columbia subject headings:
Industrial efficiency--Great Britain.
Industrial efficiency--United States.
Labor unions--Great Britain.
Labor unions--United States.
Technological innovations--Great Britain.
Technological innovations--United States.
Harvard subject headings:
Industrial efficiency--Great Britain.
Industrial efficiency--United States.
Labor unions--Great Britain
Labor unions--United States
Technological innovations--Great Britain
Technological innovations--United States
Princeton subject headings:
Industrial efficiency--Great Britain.
Industrial efficiency--United States.
Labor unions--Great Britain.
Labor unions--United States.
Technological innovations--Great Britain.
Technological innovations--United States.