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
"Constantine VII Porphyrogenitus, Emperor of the East and Boor, Carl de",Excerpta de Legationibus Romanorum ad gentes,,Weidmann,1903,Excerpta Historica iussu Imp. Constantini Porphyrogeniti confecta,,,,https://cir.nii.ac.jp/crid/1130000794754200064