Columbia subject headings:
Harvard subject headings:
Catholic Church--Foreign relations--Germany.
Europe--Politics and government--1918-1945.
Germany--Foreign relations--Catholic Church.
Germany--History--1933-1945.
Pius XII, Pope, 1876-1958.
Popes--Biography
World War, 1939-1945--Religious aspects--Catholic Church
Princeton subject headings:
Europe--Politics and government--1918-1945.
Germany--History--1933-1945.
Pius XII, Pope, 1876-1958.
Popes--Biography.
World War, 1939-1945--Catholic Church.