* {{књигаcite book|last=Levillain|first=Philippe|title=Dictionnaire historique de la papauté|publisher=Routledge|date=2002|edition=Illustrated|series=The Papacy: An Encyclopedia|volume=II|isbn=978-0-415-92230-2|url=https://books.google.com/books?id=c3NzTkyUntYC&dq=apostolic+palace&as_brr=3&source=gbs_navlinks_s|accessdate=22. 4. 2010.}}
* {{књигаcite book|last=Morton|first=H.V. |title=A Traveller in Rome|publisher=Da Capo Press|date=2002|edition=Reprint|isbn=978-0-306-81131-9|url=https://books.google.com/books?id=fjU3mJ7BJggC&pg=PA355&dq=apostolic+palace&lr=&as_brr=3&ei=FH0uS9j-OomazgSKtaHTBA&cd=14#v=onepage&q=apostolic%20palace&f=false|accessdate=22. 4. 2010.}}
