APA (7th ed.) Citation

Pedro Sarnensis. (1855). Petri Sarnesis historia albigensium. J. P. Migne.

Chicago Style (17th ed.) Citation

Pedro Sarnensis. Petri Sarnesis Historia Albigensium. Paris: J. P. Migne, 1855.

MLA (9th ed.) Citation

Pedro Sarnensis. Petri Sarnesis Historia Albigensium. J. P. Migne, 1855.

Warning: These citations may not always be 100% accurate.