Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Grassi, Corrado and Sobrero, Alberto and Telmon, Tullio",Fondamenti di dialettologia italiana,,Editori Laterza,1998,Manuali Laterza,,8842051314,,https://cir.nii.ac.jp/crid/1130282271664364416