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
"Collins, Roger","Early medieval Spain : unity in diversity, 400-1000",,Macmillan,1983,New studies in medieval history,,"0333262824,0333262832",,https://cir.nii.ac.jp/crid/1130282268961271552