Columbia subject headings:
Catholic Church. Archdiocese of Perugia (Italy)--History--19th century.
Catholic Church. Archdiocese of Perugia (Italy). Bishop (1846-1878 : Pecci)
Leo XIII, Pope, 1810-1903.
Perugia (Italy)--Church history--19th century.
Harvard subject headings:
Catholic Church. Archdiocese of Perugia--History--19th century.
Leo XIII, Pope, 1810-1903
Perugia (Italy)--Church history--19th century.
Princeton subject headings:
Catholic Church. Archdiocese of Perugia--History--19th century.
Leo XIII, Pope, 1810-1903.
Perugia (Italy)--Church history--19th century.