Columbia subject headings:
Harvard subject headings:
World War, 1939-1945--Asia--Congresses.
World War, 1939-1945--Europe--Congresses.
World War, 1939-1945--Pacific area--Congresses.
World War, 1939-1945--United States--Congresses.
Princeton subject headings:
World War, 1939-1945--Asia--Congresses.
World War, 1939-1945--Europe--Congresses.
World War, 1939-1945--Pacific area--Congresses.
World War, 1939-1945--United States--Congresses.