Rome 1300 : on the path of the pilgrim.

MLA

Kessler, Herbert L., and Johanna Zacharias. Rome 1300 : On the Path of the Pilgrim. New Haven (Conn.): Yale university, 2000.

APA

Kessler, H. L., & Zacharias, J. (2000). Rome 1300 : on the path of the pilgrim. New Haven (Conn.): Yale university.

Chicago

Kessler, Herbert L.., and Johanna Zacharias. Rome 1300 : On the Path of the Pilgrim. New Haven (Conn.): Yale university, 2000.