APA (7th ed.) Citation

Pegg, M. G. (2016). The Paradigm of Catharism; or, the Historians' Illusion. Cathars in question, 21-52.

Chicago Style (17th ed.) Citation

Pegg, Mark Gregory. "The Paradigm of Catharism; or, the Historians' Illusion." Cathars in Question 2016: 21-52.

MLA (8th ed.) Citation

Pegg, Mark Gregory. "The Paradigm of Catharism; or, the Historians' Illusion." Cathars in Question, 2016, pp. 21-52.