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
"Bartha, Antal",Hungarian society in the 9th and 10th centuries,,Akadémiai Kiadó,1975,Studia historica Academiae Scientiarum Hungaricae,,9630503085,,https://cir.nii.ac.jp/crid/1130282268645113856