著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Jular Pérez-Alfaro, Cristina and Estepa Díez, Carlos","Land, power, and society in medieval Castile : a study of behetría lordship",,Brepols,2009,The Medieval countryside,,9782503526232,,https://cir.nii.ac.jp/crid/1130000794247945984