Bibliografia Normanno-Sveva

Abulafia David
Trade and Crusade, 1050-1250
storia
Crociate, traffici, scambi, Mediterraneo
Cross Cultural Convergences in the Crusader Period. Essays Presented to Aryeh Graboïs on his Sixty-Fifh Birthday, cur. M. E. Goodich-S. Menache-S. Schein, New York 1995, pp. 1-20