Caferro, W. (2006). John Hawkwood: An English mercenary in fourteenth-century Italy. Johns Hopkins University Press.
Chicago-referens (17:e uppl.)Caferro, William. John Hawkwood: An English Mercenary in Fourteenth-century Italy. Baltimore: Johns Hopkins University Press, 2006.
MLA-referens (9:e uppl.)Caferro, William. John Hawkwood: An English Mercenary in Fourteenth-century Italy. Johns Hopkins University Press, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.