Columbia subject headings:
Catholic Church--Germany--History--1933-1945.
Catholic Church. Pope (1922-1939 : Pius XI). Mit brennender Sorge.
Church and state--Germany--History--1933-1945.
Germany--Religion--1933-1945.
Harvard subject headings:
Catholic Church--Germany--History--1933-1945.
Catholic Church. Pope (1922-1939 : Pius XI) Mit brennender Sorge (14 Mar. 1937)
Church and state--Germany--History--1933-1945
Germany--Religion--1933-1945.
Princeton subject headings:
Catholic Church--Germany--History--1933-1945.
Catholic Church. Pope, 1922-1939 (Pius XI) Mit brennender Sorge (14 Mar. 1937)
Church and state--Germany--History--1933-1945.
Germany--Religion--1933-1945.