Columbia subject headings:
Harvard subject headings:
Hungary--History--1918-1945
Poland--History--Occupation, 1939-1945
Polish people--Hungary--History--20th century.
World War, 1939-1945--Hungary.
World War, 1939-1945--Poland.
World War, 1939-1945--Refugees.
Princeton subject headings:
Polish people--Hungary--History.
World War, 1939-1945--Refugees.