Columbia subject headings:
United States--Armed Forces--Mobilization.
United States. Army--History--World War, 1939-1945.
World War, 1939-1945.
Harvard subject headings:
United States--Armed Forces--Mobilization.
United States. Army--History--World War, 1939-1945.
World War, 1939-1945.
Princeton subject headings:
United States--Armed Forces--Mobilization.
United States. Army--History--World War, 1939-1945.
World War, 1939-1945.