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 "Haarmann, Harald",Language in ethnicity : a view of basic ecological relations,,Mouton de Gruyter,1986,Contributions to the sociology of language,,"0899250971,3110106884",,https://cir.nii.ac.jp/crid/1130000796796890624