Columbia subject headings:
Harvard subject headings:
Poland--Politics and government--1918-1945
Political parties--Poland--History--20th century
Zjednoczenie Pracy Wsi i Miast--History.
Związek Naprawy Rzeczypospolitej--History.
Princeton subject headings:
Poland--Politics and government--1918-1945.
Political parties--Poland--History--20th century.
Związek Naprawy Rzeczypospolitej--History.