Columbia subject headings:
Harvard subject headings:
Poland--Foreign relations--Soviet Union
Polish people--Foreign countries--Politics and government
Rzeczpospolita Polska (Government-in-exile)--History.
Soviet Union--Foreign relations--Poland.
World War, 1939-1945--Poland.
Princeton subject headings:
Poland--Foreign relations--History.
Poland--Politics and government--1918-1945.
Poland--Relations--Soviet Union.
Soviet Union--Relations--Poland.
World War, 1939-1945--Poland.