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 "Pozzetta, George E.","Ethnicity, ethnic identity, and language maintenance",,Garland Pub.,1991,American immigration & ethnicity,,0824074165,,https://cir.nii.ac.jp/crid/1130282271446553856