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
"Helmold, ca.ca. 1177 and Tschan, Francis Joseph",The chronicle of the Slavs,,Octagon Books,1966,Records of civilization,,,,https://cir.nii.ac.jp/crid/1130282270488627968