APA (7th ed.) Citation

Duvernoy, J. (1979). L' histoire des cathares. Le catharisme..

Chicago Style (17th ed.) Citation

Duvernoy, Jean. "L' Histoire Des Cathares." Le Catharisme. 1979.

MLA (8th ed.) Citation

Duvernoy, Jean. "L' Histoire Des Cathares." Le Catharisme., 1979.

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