APA (7th ed.) Citation

Guillaume, d. T. -., & Shirley, J. (2000). The song of the Cathar wars: A history of the Albigensian Crusade Crusade texts in translation.

Chicago Style (17th ed.) Citation

Guillaume, de Tudèle -1214, and Janet Shirley. "The Song of the Cathar Wars: A History of the Albigensian Crusade." Crusade Texts in Translation 2000.

MLA (8th ed.) Citation

Guillaume, de Tudèle -1214, and Janet Shirley. "The Song of the Cathar Wars: A History of the Albigensian Crusade." Crusade Texts in Translation, 2000.