Columbia subject headings:
Political refugees.
World War, 1939-1945--Refugees.
Harvard subject headings:
Political refugees
Political refugees--Europe--History--20th century.
United States. War Refugee Board
World War, 1939-1945--Civilian relief--Europe.
World War, 1939-1945--Jews--Rescue--Europe.
World War, 1939-1945--Refugees--Europe.
World War, 1939-1945--Refugees.
Princeton subject headings:
Political refugees.
World War, 1939-1945--Refugees.