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
"Karelin, K. K.",Putevyia kartiny v Bolgarii v 1877-78 gg.,,University Microfilms International,1980,Russian history and culture : scarce books on 19th and 20th century Russia from the Helsinki University Library,,,,https://cir.nii.ac.jp/crid/1130282271677629056