Columbia subject headings:
Minorities--Poland.
Nationalism--Poland.
Poland--Boundaries.
Poland--Ethnic relations--Political aspects.
Poland--Politics and government--1918-1945.
Socialism--Poland.
Harvard subject headings:
Minorities--Poland
Nationalism--Poland
Poland--Boundaries
Poland--Ethnic relations
Poland--Ethnic relations--Political aspects.
Poland--Politics and government--1918-1945
Polska Partia Socjalistyczna
Socialism--Poland
Princeton subject headings: