Columbia subject headings:
Church and state--Poland--History--20th century.
Communism and Christianity--Poland--History.
Poland--Church history--20th century.
Protestant churches--Poland--History--20th century.
Harvard subject headings:
Communism and religion--Poland--History.
Poland--History--Occupation, 1939-1945
Protestant churches--Poland--History--20th century.
World War, 1939-1945--Religious aspects--Protestant churches.
Princeton subject headings:
Communism and religion--Poland--History.
Poland--History--Occupation, 1939-1945.
Protestant churches--Poland--History--20th century.
World War, 1939-1945--Religious aspects--Protestant churches.