Columbia subject headings:
Catholics, German--Poland--Wielkopolska--History.
Germanization--Poland--Wielkopolska--History.
Germans--Poland--Wielkopolska--History.
Prussia (Germany)--History--1870-
Religion and state--Poland--Wielkopolska.
Wielkopolska (Poland)--Ethnic relations--Government policy.
Harvard subject headings:
Catholics, German--Poland--Wielkopolska--History.
Prussia (Germany)--Ethnic relations--Government policy--History.
Religion and state--Germany--Prussia.
Princeton subject headings:
Catholics, German--Poland--Wielkopolska (Poland)--History.
Prussia (Germany)--Ethnic relations--Government policy--History.
Religion and state--Prussia (Germany).