Columbia subject headings:
Arbitration, Industrial--United States.
United States. National Defense Mediation Board.
World War, 1939-1945--Economic aspects--United States.
Harvard subject headings:
Arbitration, Industrial--United States
United States. National Defense Mediation Board.
World War, 1939-1945--Economic aspects--United States.
World War, 1939-1945--United States.
Princeton subject headings: