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
"Wickham, Chris","Early medieval Italy : central power and local society, 400-1000",,Macmillan,1981,New studies in medieval history,,"0333266714,0333266722",,https://cir.nii.ac.jp/crid/1130282269761030400