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 "Singh, R. and Dasgupta, Probal and Lele, Jayant",Explorations in Indian sociolinguistics,,Sage Publications,1995,Language and development,,"8170364671,0803992386",,https://cir.nii.ac.jp/crid/1130000796371769472