Cita APA

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.

Citación estilo Chicago

Purcell, 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.

Cita MLA

Purcell, 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.