Columbia subject headings:
Catholic Church--Foreign relations--Great Britain.
Great Britain--Foreign relations--Catholic Church.
Vatican City--History.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Vatican City.
Harvard subject headings:
Catholic Church--Foreign relations--Great Britain.
Great Britain--Foreign relations--Catholic Church.
Vatican City--History.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Vatican City.
Princeton subject headings:
Catholic Church--Foreign relations--Great Britain.
Great Britain--Foreign relations--Catholic Church.
Vatican City--History.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Vatican City.