Columbia subject headings:
Archivio vaticano.
Catholic Church--History--Sources--Bibliography.
Church history--Middle Ages, 600-1500--Sources--Bibliography.
Harvard subject headings:
Archivio vaticano
Catholic Church--History--Sources--Bibliography.
Church history--Middle Ages, 600-1500--Sources--Bibliography.
Manuscripts, Medieval--Vatican City.
Princeton subject headings:
Archivio vaticano.
Catholic Church--History--Sources--Bibliography.
Church history--Middle Ages, 600-1500--Sources--Bibliography.
Manuscripts, Medieval--Vatican City.