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 "Gumperz, John Joseph",Language and social identity,,Cambridge University Press,1982,Studies in interactional sociolinguistics,,"052124692X,0521288975",,https://cir.nii.ac.jp/crid/1130000797430042240