Columbia subject headings:
Komunistyczna Partia Polski--History.
Minorities--Political activity--Poland.
Poland--Politics and government--1918-1945.
Political parties--Poland--History--20th century.
Harvard subject headings:
Minorities--Political activity--Poland.
Poland--Politics and government--1918-1945
Princeton subject headings:
Minorities--Political activity--Poland.
Poland--Politics and government--1918-1945.