Paus Adrianus VI: verschil tussen versies

* Maxwell-Stuart, P.G. (1997): Chronicle of the Popes. The Reign-by-Reign Record of the Papacy from St. Peter to the present, Thames & Hudson, ISBN 0500017980, ISBN 978-0500017982

* McBrien, Richard P. (1997): De Pausen. Van Petrus tot Johannes Paulus II, Gottmer, ISBN 9789025730413