著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) GILES H.,Towards a theory of language in ethnic group relation,"Language, Ethnicity and Intergroup Relations",,Academic Press,1977,,,,https://cir.nii.ac.jp/crid/1573668925325254400,