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
"Gajecky, George and Harvard Ukrainian Research Institute",The Cossack administration of the Hetmanate,,Harvard Ukrainian Research Institute,1978,Harvard Ukrainian Research Institute sources and documents series,,"0916458024,0916458024",,https://cir.nii.ac.jp/crid/1130000797585005184