Columbia subject headings:
Centralne Biuro Komunistów Polskich.
World War, 1939-1945--Poland.
Związek Patriotów Polskich w ZSRR.
Harvard subject headings:
Poland--Politics and government--1918-1945
Poland--Relations--Soviet Union
Polish people--Soviet Union--Political activity.
Polish people--Soviet Union--Politics and government.
Soviet Union--Relations--Poland.
Związek Patriotów Polskich w ZSRR.
Princeton subject headings:
Poland--Politics and government--1918-1945.
Poland--Relations--Soviet Union.
Polish people--Soviet Union--History--20th century.
Soviet Union--Relations--Poland.
Związek Patriotów Polskich w ZSRR.