The first crusade and the idea of crusading

MLA

Riley-Smith, Jonathan. The First Crusade and the Idea of Crusading. paperback ed. London: Athlone, 1993.

APA

Riley-Smith, J. (1993). The first crusade and the idea of crusading. paperback ed. London: Athlone.

Chicago

Riley-Smith, Jonathan The First Crusade and the Idea of Crusading. paperback ed. London: Athlone, 1993.