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 "Schmid, Monika S.",Language attrition,,Cambridge University Press,2011,Key topics in sociolinguistics,,"9780521759939,9780521760409",,https://cir.nii.ac.jp/crid/1130282269919940480