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 "Nassenstein, Nico",Kisangani Swahili : choices and variation in a multilingual urban space,,LINCOM GmbH,2015,Languages of the world,,9783862886678,,https://cir.nii.ac.jp/crid/1130570452393941382