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
"Varley, Nadia",Optionality and overgeneralisation patterns in second language acquisition : where has the expletive ensconced itself?,,P. Lang,2015,Potsdam linguistic investigations = Potsdamer Linguistische Untersuchungen = Recherches linguistiques à Potsdam,,9783631667989,,https://cir.nii.ac.jp/crid/1130282271011347328