APA (7th ed.) Citation

O'Callaghan, J. F. (2004). Reconquest and crusade in medieval Spain (First paperback edition.). University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

O'Callaghan, Joseph F. Reconquest and Crusade in Medieval Spain. First paperback edition. Philadelphia [Pa.]: University of Pennsylvania Press, 2004.

MLA (8th ed.) Citation

O'Callaghan, Joseph F. Reconquest and Crusade in Medieval Spain. First paperback edition. University of Pennsylvania Press, 2004.