Columbia subject headings:
Manufactures--United States.
Manufacturing industries--United States.
Trusts, Industrial--United States.
World War, 1939-1945--Economic aspects--United States.
Harvard subject headings:
Princeton subject headings:
Manufactures--United States.
Manufacturing industries--United States.
Trusts, Industrial--United States.
World War, 1939-1945--Economic aspects--United States.