Columbia subject headings:
Harvard subject headings:
Polish people--Foreign countries--History.
Refugees--Soviet Union.
Soviet Union--Emigration and immigration--History.
World War, 1939-1945--Deportations from Poland.
Princeton subject headings:
Polish people--Foreign countries--History.
Refugees--Soviet Union.
Soviet Union--Emigration and immigration--History.
World War, 1939-1945--Deportations from Poland.