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
"Ó Cróinín, Dáibhí",Early medieval Ireland 400-1200,,Longman,1995,Longman history of Ireland,,"0582015669,0582015650",,https://cir.nii.ac.jp/crid/1130000797815656576