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
"Berruto, Gaetano",Sociolinguistica dell'italiano contemporaneo,4a ed,La Nuova Italia Scientifica,1994,Studi superiori NIS,,8843002287,,https://cir.nii.ac.jp/crid/1130282270545700480