Columbia subject headings:
Poland--Foreign relations--Soviet Union.
Poland--Politics and government--1989-
Soviet Union--Foreign relations--Poland.
World War, 1939-1945--Poland.
Harvard subject headings:
Maps
Poland--Foreign relations--Soviet Union
Poland--Politics and government--1945-1980
Soviet Union--Foreign relations--Poland
World War, 1939-1945--Poland
Princeton subject headings:
Poland--Foreign relations--Soviet Union.
Poland--Politics and government--1945-.
Soviet Union--Foreign relations--Poland.
World War, 1939-1945--Poland.