Columbia subject headings:
Grain trade--United States.
United States Food Administration. Grain Corporation.
United States Grain Corporation.
Wheat trade--United States.
World War, 1914-1918--Food supply--United States.
Harvard subject headings:
Grain trade--United States.
United States Food Administration. Grain Corporation.
United States Grain Corporation.
World War, 1914-1918--Food supply--United States
Princeton subject headings:
Grain trade--United States.
United States Grain Corporation.
United States. Food administration. Grain corporation.
Wheat trade--United States.
World War, 1914-1918--Food supply--United States.