Columbia subject headings:
Poland--Foreign relations--Soviet Union.
Polish people--Soviet Union--History.
Soviet Union--Foreign relations--Poland.
World War, 1939-1945--Deportations from Poland.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Poland.
Harvard subject headings:
Poland--Population--History.
World War, 1939-1945--Deportations from Poland.
World War, 1939-1945--Evacuation of civilians--Poland.
World War, 1939-1945--Refugees.
Princeton subject headings:
Poland--Foreign relations--Soviet Union.
Polish people--Soviet Union--History.
Soviet Union--Foreign relations--Poland.
World War, 1939-1945--Deportations from Poland.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Poland.