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
"Chevalier, Sarah",Trilingual language acquisition : contextual factors influencing active trilingualism in early childhood,,John Benjamins,2015,Trends in language acquisition research,,9789027244055,,https://cir.nii.ac.jp/crid/1130000796211760640