Columbia subject headings:
Harvard subject headings:
United States--History--1933-1945.
World War, 1939-1945--Campaigns--Western Front.
World War, 1939-1945--United States.
Princeton subject headings:
United States--History--1933-1945.
World War, 1939-1945--Campaigns--Western Front.
World War, 1939-1945--United States.