Kertzer, D. I. (2004). Prisoner of the Vatican: The Pope's secret plot to capture Rome from the new Italian state. Houghton Mifflin.
Chicago-Zitierstil (17. Ausg.)Kertzer, David I. Prisoner of the Vatican: The Pope's Secret Plot to Capture Rome from the New Italian State. New York, NY: Houghton Mifflin, 2004.
MLA-Zitierstil (9. Ausg.)Kertzer, David I. Prisoner of the Vatican: The Pope's Secret Plot to Capture Rome from the New Italian State. Houghton Mifflin, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.