O'Shea, S. (2011). The friar of Carcassonne: Heresy and inquisition in the last days of the Cathars (1. publ. in Great Britain.). Profile Books.
Chicago Style (17th ed.) CitationO'Shea, Stephen. The Friar of Carcassonne: Heresy and Inquisition in the Last Days of the Cathars. 1. publ. in Great Britain. London: Profile Books, 2011.
MLA (9th ed.) CitationO'Shea, Stephen. The Friar of Carcassonne: Heresy and Inquisition in the Last Days of the Cathars. 1. publ. in Great Britain. Profile Books, 2011.
Warning: These citations may not always be 100% accurate.