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
"Williamson, Robert Clifford and Van Eerde, John A. and Fishman, Joshua A.",Language maintenance and language shift,,Mouton,1980,International journal of the sociology of language,,9027930686,,https://cir.nii.ac.jp/crid/1130282270007158272