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
"Jones, Mari C.",Language obsolescence and revitalization : linguistic change in two sociolinguistically contrasting Welsh communities,,"Clarendon Press,Oxford University Press",1998,Oxford studies in language contact,,0198237111,,https://cir.nii.ac.jp/crid/1130282269796760960