Columbia subject headings:
Avolio, Gennaro, 1858-1928--Religion.
Church and state--Italy--Naples--History.
Church renewal--Italy--Naples--History.
Naples (Italy)--Church history.
Naples (Italy)--Religion.
Harvard subject headings:
Avolio, Gennaro, 1858-1928--Religion.
Church and state--Italy--Naples--History.
Church renewal--Italy--Naples--History.
Naples (Italy)--Church history.
Naples (Italy)--Religion.
Princeton subject headings: