Columbia subject headings:
Harvard subject headings:
Communism and Christianity--Catholic Church--Poland.
Communism and Christianity--Catholic Church.
Communism and Christianity--Poland.
Philosophy, Marxist--Poland.
Philosophy, Polish--History.
Poland--Church history--20th century
Princeton subject headings:
Communism and Christianity--Catholic Church--Poland.
Philosophy, Marxist--Poland.
Philosophy, Polish--History.