Hardwicke (EN) Mary Nickerson Hardwicke, The Crusader States, 1192–1243, in Harry W. Hazard e Robert Lee Wolff (a cura di), The Later Crusades, 1189–1311, Vol. II della collana A History of the Crusades curata da Kenneth M. Setton, Madison, Wisconsin, University of Wisconsin Press, 1969.
digital.library.wisc.edu
Hardwicke (EN) Mary Nickerson Hardwicke, The Crusader States, 1192–1243, in Harry W. Hazard e Robert Lee Wolff (a cura di), The Later Crusades, 1189–1311, Vol. II della collana A History of the Crusades curata da Kenneth M. Setton, Madison, Wisconsin, University of Wisconsin Press, 1969.
