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
"Seals, Corinne A. and Shah, Sheena",Heritage language policies around the world,,Routledge,2019,Routledge studies in sociolinguistics,,9780367414719,,https://cir.nii.ac.jp/crid/1130285376115075456