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 "Ralph, Bo",Phonological differentiation : studies in Nordic language history,,Acta Universitatis Gothoburgensis,1975,Nordistica Gothoburgensia,,9173460141,,https://cir.nii.ac.jp/crid/1130000796923617408