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
"Verhulst, Adriaan E.",The Carolingian economy,,Cambridge University Press,2002,Cambridge medieval textbooks,,"9780521004749,0521808693",,https://cir.nii.ac.jp/crid/1130282268882094208