Cita APA (7a ed.)

Riley-Smith, J. (2005). The Crusades: A history (2nd ed.). Continuum.

Cita Chicago Style (17a ed.)

Riley-Smith, Jonathan. The Crusades: A History. 2nd ed. London: Continuum, 2005.

Cita MLA (9a ed.)

Riley-Smith, Jonathan. The Crusades: A History. 2nd ed. Continuum, 2005.