APA (7th ed.) Citation

Barry, W. (1902). The Papal monarchy: From St. Gregory the Great to Boniface VIII (590-1303). T. Fisher Unwin.

Chicago Style (17th ed.) Citation

Barry, William. The Papal Monarchy: From St. Gregory the Great to Boniface VIII (590-1303). London: T. Fisher Unwin, 1902.

MLA (9th ed.) Citation

Barry, William. The Papal Monarchy: From St. Gregory the Great to Boniface VIII (590-1303). T. Fisher Unwin, 1902.