Style de citation APA (7e éd.)

Willard, H. M. (1973). Abbot Desiderius and the ties between Montecassino and Amalfi in the eleventh century. 1 ottobre 1071 - 1 ottobre 1971.

Style de citation Chicago (17e éd.)

Willard, Henry M. "Abbot Desiderius and the Ties Between Montecassino and Amalfi in the Eleventh Century." 1 Ottobre 1071 - 1 Ottobre 1971 1973.

Style de citation MLA (8e éd.)

Willard, Henry M. "Abbot Desiderius and the Ties Between Montecassino and Amalfi in the Eleventh Century." 1 Ottobre 1071 - 1 Ottobre 1971, 1973.