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
"Drolc, Ursula",Swahili among the Maasai : on the interlanguage Swahili by Maa speakers,,LINCOM Europa,1999,Lincom studies in African linguistics,,3895860883,,https://cir.nii.ac.jp/crid/1130000796345404160