Cita APA (7a ed.)

Lower, M. (2005). The Barons' Crusade: A Call to Arms and Its Consequences. University of Pennsylvania Press.

Cita Chicago Style (17a ed.)

Lower, Michael. The Barons' Crusade: A Call to Arms and Its Consequences. Philadelphia: University of Pennsylvania Press, 2005.

Cita MLA (8a ed.)

Lower, Michael. The Barons' Crusade: A Call to Arms and Its Consequences. University of Pennsylvania Press, 2005.