APA (7th ed.) Citation

Riley-Smith, J. S. C. (2014). The crusades: A history (3. ed.). Bloomsbury.

Chicago Style (17th ed.) Citation

Riley-Smith, Jonathan Simon Christopher. The Crusades: A History. 3. ed. London: Bloomsbury, 2014.

MLA (9th ed.) Citation

Riley-Smith, Jonathan Simon Christopher. The Crusades: A History. 3. ed. Bloomsbury, 2014.