Columbia subject headings:
Catholic Church--Foreign relations--Italy.
Catholic Church--Italy.
Church and state--Italy.
Italy--Foreign relations--Catholic Church.
Harvard subject headings:
Catholic Church--Foreign relations--Italy.
Catholic Church--Italy.
Church and state--Italy.
Italy--Foreign relations--Catholic Church.
Princeton subject headings:
Catholic Church--Foreign relations--Italy.
Catholic Church--Italy.
Church and state--Italy.
Italy--Foreign relations--Catholic Church.