Columbia subject headings:
United States. Army--Supplies and stores.
Weapons industry.
World War, 1914-1918--United States.
Harvard subject headings:
Defense industries
Military supplies.
Military weapons
United States. Army--Supplies and stores.
World War, 1914-1918--United States
Princeton subject headings:
Munitions.
United States. Army--Supplies and stores.
World War, 1914-1918--United States.