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
"Hutton, Edward, b. 1875 and Sund, Harald",The story of Ravenna,,Kraus Reprint,1971,Mediaeval towns series,,,,https://cir.nii.ac.jp/crid/1130000797749954688