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
"Gentile, Giovanni and Guerraggio, Angelo and Nastasi, Pietro",Gentile e i matematici italiani : lettere 1907-1943,1a ed,Bollati Boringhieri,1993,Universale Bollati Boringhieri,,8833908011,,https://cir.nii.ac.jp/crid/1130000793903627136