Columbia subject headings:
Harvard subject headings:
Catholic Church--Doctrines.
Catholic Church--Italy--Tuscany--Pastoral letters and charges.
Princeton subject headings:
Catholic Church--Italy--Tuscany--Bishops--Bibliography--Catalogs.
Catholic Church--Italy--Tuscany--Dioceses--Bibliography--Catalogs.
Catholic Church--Italy--Tuscany--Pastoral letters and charges--Bibliography--Catalogs.
Tuscany (Italy)--Church history.