Purcell, M. (1975). Papal crusading policy: The chief instruments of papal crusading policy and crusade to the Holy Land from the final loss of Jerusalem to the fall of Acre, 1244-1291. Leiden: E. J. Brill.
Chicago Style CitationPurcell, Maureen. Papal Crusading Policy: The Chief Instruments of Papal Crusading Policy and Crusade to the Holy Land From the Final Loss of Jerusalem to the Fall of Acre, 1244-1291. Leiden: E. J. Brill, 1975.
MLA CitationPurcell, Maureen. Papal Crusading Policy: The Chief Instruments of Papal Crusading Policy and Crusade to the Holy Land From the Final Loss of Jerusalem to the Fall of Acre, 1244-1291. Leiden: E. J. Brill, 1975.
Warning: These citations may not always be 100% accurate.