Columbia subject headings:
Alexander VI, Pope, 1431-1503.
Bulls, Papal--History.
Catholic Church. Cancellaria Apostolica.
Diplomatics, Latin--Italy--Rome.
Incunabula--Italy--Rome.
Innocent VIII, Pope, 1432-1492.
Papacy--History--1447-1565.
Soto, Alfonsus de.
Harvard subject headings:
Alexander VI, Pope, 1431-1503
Catholic Church. Cancellaria Apostolica--Sources.
Incunabula
Innocent VIII, Pope, 1432-1492
Papacy--15th century--Sources.
Papacy--16th century--Sources.
Princeton subject headings:
Alexander VI, Pope, 1431-1503.
Catholic Church. Cancellaria Apostolica--Sources.
Incunabula.
Innocent VIII, Pope, 1432-1492.
Papacy--15th century--Sources.
Papacy--16th century--Sources.