Pedro IV, King of Aragon, 1319?-1387. (1991). The chronicle of San Juan de la Peña : a fourteenth-century official history of the crown of Aragon. Nelson, Lynn H. (Lynn Harry), 1931-. Philadelphia: University of Pennsylvania Press. ISBN081223068X. OCLC23179912.{{cite book}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
O'Callaghan, Joseph F. (1975). A history of medieval Spain. Ithaca: Cornell University Press. ISBN0801408806. OCLC1272494.