Columbia subject headings:
Harvard subject headings:
Catholic Church--Italy--Emilia-Romagna--History--Archival resources.
Princeton subject headings:
Catholic Church--Italy--Emilia-Romagna--Bishops--Bibliography--Catalogs.
Catholic Church--Italy--Emilia-Romagna--Dioceses--Bibliography--Catalogs.
Catholic Church--Italy--Emilia-Romagna--Pastoral letters and charges--Bibliography--Catalogs.
Emilia-Romagna (Italy)--Church history.