Columbia subject headings:
Air defenses--United States.
Air defenses.
Art treasures in war.
Cultural property--Protection--United States.
World War, 1939-1945--Art and the war.
Harvard subject headings:
Air defenses
Air defenses--United States
Art treasures in war
Cultural property--Protection--United States
World War, 1939-1945--Art and the war
Princeton subject headings:
Air defenses--United States.
Air defenses.
Art treasures in war.
Cultural property--Protection--United States.
World War, 1939-1945--Art and the war.