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
"Randsborg, Klavs",The Viking age in Denmark : the formation of a state,,Duckworth,1980,Paperduck,,"0715614436,0715614665",,https://cir.nii.ac.jp/crid/1130000796174170752