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
"DuFon, Margaret A. and Churchill, Eton",Language learners in study abroad contexts,,Multilingual Matters,2006,Second language acquisition,,"1853598526,1853598518",,https://cir.nii.ac.jp/crid/1130000797468141184