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 "Hajek, John",Multilingualism and pluricentricity : a tale of many cities,,De Gruyter Mouton,2024,Language and social life,,9781501517518,,https://cir.nii.ac.jp/crid/1130861915077286294