Columbia subject headings:
Church and state--Poland--History--20th century.
Nationalism--Religious aspects--Poland--History--20th century.
Poland--Church history--20th century.
Protestant churches--Poland--History--20th century.
Harvard subject headings:
Church and state--Poland--History--20th century
Lutheran Church--Poland--History--20th century.
Nationalism--Religious aspects--Poland--History--20th century.
Poland--Church history--20th century
Princeton subject headings: