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
"Einaudi, Luigi and Croce, Benedetto and Firpo, Luigi",Carteggio (1902-1953),,Fondazione Luigi Einaudi,1988,Studi,,,,https://cir.nii.ac.jp/crid/1130282270078005248